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We all know that we need to compress a large file if want to transfer or send it to someone. But have you ever thought about what happens to a file when it is compressed? How does the size of a file reduce by compressing? What actually is a file compression and is the quality of a file compromised while compressing it?

These are a few questions that we will be talking about, in this post.

What is file compression?

As the name implies, file compression means compressing a file to reduce its size. File size can be reduced up to 90% by restructuring, encoding, or modifying its data, and this is what we call file compression.

Compressing files saves a lot of disk space on your PC and also, you can send a compressed file over a slow internet connection. WinZip, WinRAR, 7-Zip, Zip Archiver, and PeaZip are a few of the most common file compression options.

What happens when you compress a File?

When we compress a file, it is converted into a zipped file and if you are sending a zipped file to someone, the receiver has to decompress (extract) it to open it.  After decompressing it they can view the file in its original size.

Types of File Compression

There are two types of compression- Lossy compression and Lossless compression the major difference between the two is that in Lossy compression your data quality is compromised a little and in Lossless compression, your file remains intact. Let’s learn this in a bit more detail.

What is Lossy Compression

In lossy compression, your file is compressed by eliminating the unnoticeable data. This type of compression saves you more space as it reduces the file size significantly, but as mentioned above, in lossy compression, the quality of your file whether it is an image file, audio, or a video file, will be compromised a little. Although, you might not even notice that little change in the quality from your naked eye. A file compressed with lossy compression cannot be restored in its original form after decompression. It is also termed an irreversible compression, which means, that once compressed, you cannot bring the file into its original form (because we actually remove certain data of the file while compressing). You can use lossy compression in images, audio, or video files. Below are two of my images compressed using the lossy compression, see if you can find any difference in the quality.

Read:

What is Lossless Compression

Unlike the lossy compression, here the unnoticeable data of your file is not eliminated and hence this compression won’t make a significant change in the file size. In lossless compression, only the unwanted data is removed and the main information is encoded in fewer bytes, hence no quality loss. A very common example of lossless compression is the Zip format. In this format, you can compress one or more files into a single location, which makes it easier to transfer. Although, a Zip file might not save you huge disk space. You can use lossless compression on the images, audio, and text files. This doesn’t work for the video files. The best part is that you can view the file in its original form after decompressing it.

In lossless compression, redundancy is removed. Data redundancy is a condition created within a database or data storage environment in which the same piece of data is held in multiple places. By removing redundancy, you will be left with just one instance of each bit of data.

For instance a file like this-

AAAABBBBBBBCCCDDDDD

could after compression become-

A4B7C3D5

Read: Monkeys Audio is a great free lossless compression software for your music files

As we read above, lossy compression saves you more space as compared to lossless compression, people prefer using lossy compression more for their regular usage. It comes in handy when you have to send a large size image or an audio/video to someone or when you want to print an image. However, if the quality is important to you, you should rather choose the lossless compression method.

Your anti-virus software might not be able to scan the compressed file for viruses and trojans which may harm your PC.

The receiver cannot open a zipped file without having a program to decompress it.

Both compressing and decompressing use some memory and the processor of your PC, thus it may make your PC a little slower while the process is done.

Read: How to repair corrupted and damaged zip files

What compression do Zip files use?

Zip files use lossless compression which means the quality of your data is not compromised when compressed in a Zip format. Remember that compressing a file into Zip format might not help you with significant disk space. Windows OS too offers a built-in Zip feature.

Does compressing a file reduce quality?

With lossless compression, there won’t be any loss of quality but if you are using lossy compression, the quality will be reduced a little. A compressed image or video may lose its sharpness and fine details.

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What Happens If You Turn Off Computer During Windows Update?

Windows is one of the most widely used operating systems out there. Even though it has its fair share of shortcomings, Microsoft makes a note of providing constant updates to its users, given that there are approximately over 400 million of them worldwide. Now, what can happen if you accidentally shut down your Windows computer during the downloading or installation phase – or if it happens due to power failure?

The toll that turning off or booting your computer during an update can have on your system is contained and mostly handled really well by Windows, but there are always instances of it being damaging. Today, we will discuss what can happen if you shut down your computer during a Windows update.

What happens if you turn off computer during Windows Update

Before we get into the repercussions of shutting a PC down during an update, we must know the two stages of a Windows update. These two stages are the downloading of the update and its subsequent installation.

The harm would be none if you shut down your PC in the downloading phase. In this scenario, one of two things can happen. Either your computer backs up and stores the data that had been downloaded till the time the update was allowed to run, in which case the download will resume from where it left off. Alternatively, the data that had been downloaded by that point in time will be corrupted and your computer would have to begin the update all over again.

In case you turn it off while it’s in the installation phase, it’s possible that the other Windows processes will shut down. Then, all you can do is sit back and let Windows install the update. This process can take up some time and there may be a few hiccups here and there, although that isn’t the general case. The time requires depends on the number and type of updates and your system configuration.

Turning computer off when the update is stuck

Instances of users shutting their PC down during an update generally come up when the update screen is stuck for some time and it doesn’t seem to be making any progress.

People generally see an update screen that says “Getting Windows ready” or “Working on Updates“, with an estimate of the degree to which the update has completed (expressed in percentage). It’s mostly the scenario where these screens seem to be stuck that users choose to turn their computer off and on again.

There are other places where Windows get stuck. Some scenarios are while Downloading updates or at the Ready to Install screen.

Most of the time, this is handled very well by Windows. Upon turning your computer back on, your normal login screen is reinstated in a few minutes and you’re notified that the Update couldn’t complete. You can then choose to initiate the update again or let your computer run as it is.

Turning computer off when the update is under progress

Sometimes, when updates are big or your computer is worn out, it takes a considerable amount of time for an update to complete. This can make users think that the update is stuck when perhaps, it’s just too big or it’s the fault of the computer’s specifications. If your hard drive is slow and full and it is a big update (or just a couple of them piled up), it is possible for it to take a lot of time.

Generally, in these scenarios, too, the update either resumes or takes place again, but if it does malfunction with your computer and corrupt your Operating System, your computer may stop functioning properly and you may lose some of your data. In rare circumstances, your PC could even become unbootable. If that does happen, you are recommended to implement a Windows recovery process, which corrects and repairs the errors.

TIP: This post shows you how to access Safe Mode or Advanced Startup Options when the PC is stuck on loading some screen with the spinning dots animation moving endlessly, welcome mode, login screen, starting Windows or will not boot.

While executing a hard shutdown (which is where users long-press the power button to shut down the computer) may seem to you as the only choice when the update is either stuck or takes too much time, it is not a recommended move.

Microsoft now follows Component-Bases Servicing (CBS). This has helped stabilize the Windows Update process to a large extent. It checks for the presence of system-critical files required for a successful boot and replaces them if need be. This helps ensure that Windows boots even after an accidental shutdown. But things can go wrong, and you could end up with an unbootable system.

How long should I wait for Windows Update to finish?

Windows Update on a standalone PC typically takes between 15-20 minutes to install, with additional time needed for configuration and restarting. If it is stuck even after 30 minutes or so, you may have a situation.

What if I accidentally turned off my computer while updating?

If you accidentally turned off your Windows computer while it was updating, it may corrupt your operating system, leading to data loss or making it unbootable. The update process involves changing or replacing old files with new ones, and interrupting it can cause significant issues. Following the solutions in this post can help you get back on track, though!

Read next: What happens if you interrupt System Restore or Reset Windows?

Could Not Find This Item Error When Deleting A File

Could not find this item error when deleting a file [FIX]

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Moving or copying files and folders from one location to another should go smoothly.

Errors start showing up when you have problems with your hard drive or when the transfer is performed in a network.

If you get an error while deleting or copying a file, you should clean your system, check the system file or use the command prompt to finish the job.

Continue reading for step-by-step instructions for all these fixes plus more tips and tricks.

Are you getting a Could not find this item error when trying to delete a folder or file? This Windows error has an Item Not Found window that states: Could not find this item: This is no longer located in (path). Verify the item’s location and try again.

This can happen as a consequence of an invalid file, invalid folder title, or high RAM usage. These are a few ways you can fix the error in Windows and delete the required folder or file.

How to delete a file that says could not find this item 1. Use a dedicated tool

Sometimes, Windows has conflicting information about the same file. One says that a file was deleted and the location is empty, while another is showing an icon and the name of the file and asking for it to be deleted.

This is the exact moment when the operating system is thinking How could I delete something that isn’t there“?

And here we are, facing strange errors such as this. A quick solution would be to perform a registry scan and fix any issues found. We also recommend performing a custom scan as well and ticking as many items from Windows Explorer as possible.

For a quick and safe process, we recommend you use CCleaner. It is a lightweight PC cleaner utility that detects errors within your system and deletes all unnecessary files.

The software can scan your whole PC and also clean your browser. Let it run the scans and perform the fixes. Reboot your computer and see if the issue is fixed. 

Either the file will be gone from the system already, or there won’t be an error when trying to delete it again.

CCleaner can also help you clean your browser, remove junk files, uninstall bloatware, and do many other optimization-oriented actions that will increase PC performance.

CCleaner

Use this comprehensive utility to clean and optimize your PC for greater speed and no errors.

Free trial Visit website

2. Close Taskbar Programs to Free up RAM

First, you should free up RAM before deleting the folder or file. Close all software open on your taskbar.

In addition, close background programs with the Task Manager by pressing the Win key + X hotkey and selecting Task Manager from the menu.

Expert tip:

3. Move the file or folder into a new, temporary directory

Moving the subfolder or file to a new directory might also do the trick. Set up a new folder outside the directory the subfolder or file is in by pressing the New folder button in File Explorer.

Then, drag and drop the subfolder or file into the new, temporary folder and try deleting it again.

4. Edit the folder/file title

Long folder or file titles with spaces and symbols can cause this error. so try changing the title to something shorter with no spaces or symbols.

You can rename folders and files with the Command Prompt as follows:

Press the Win key + X hotkey and select Command Prompt (Admin) from the menu.

Open the folder you need to delete or one that contains the file to erase in Command Prompt. You can do that by entering ‘cd’ followed by the full folder path as shown in the snapshot below.

Next, type ‘dir /x’ in the Command Prompt and press Enter. That will show you all the directory content with the 8.3 formats as below.

Close Command Prompt, open File Explorer and erase the folder or file from there.

5. Delete the folder or file with Command Prompt

If you still can’t delete the file or folder in File Explorer, erase it with the Command Prompt by pressing the Win key + X keyboard shortcut and selecting Command Prompt (Admin) to open the CP.

Open the directory path with cd as before.

Input ‘dir /x’ to open the directory with DOC 8.3 folder and file titles.

Now input ‘del’ and the 8.3 file title as shown in the shot below. Press the Enter key to delete the file or folder.

Alternatively, input ‘rmdir’ and the 8.3 directory title to delete a folder.

That’s how you can fix the Could not find this item error and delete the blocked file or folder.

Editing or deleting the folder or file with the Command Prompt will usually do the trick. Check out our article on how you can fix Windows file delete issues for more information.

This issue is most of the time caused by minor problems within your system that are certainly not irreversible.

Registry issues for example may happen to any Windows user due to the fact that we frequently install and uninstall different applications.

If you need to solve other problems with explorer, check out our guides from the File Explorer section on the site.

A lot of problems have been solved and collected in various articles found in the fixing Windows 10 section.

Still experiencing issues?

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What Happens Next? Four Literary Classics For A Post–Covid

What Happens Next? Four Literary Classics for a Post–COVID-19 World

From Dante to Du Bois to de Tocqueville, revisit one of the classics that captures life after plagues, pandemics, and worse. Photo courtesy of iStock/Edmund Ollier

Books

What Happens Next? Four Literary Classics for a Post–COVID-19 World Who wants a book about plagues and pandemics—what’s more interesting is what occurs afterward

Book lists reflecting on plagues, pandemics, and disease have been coming out recently—for obvious reasons. Daniel Defoe’s A Journal of the Plague Year and William Shakespeare’s King Lear have been getting a lot of attention. The former because of Defoe’s uncanny reflections on self-isolation and the latter because of the Bard’s poetic productivity in the shadow of a bubonic plague outbreak.

Purgatorio by Dante Alighieri

In this second part of Dante’s Divine Comedy, Dante the pilgrim has survived a journey through Inferno (hell) and comes out (literally) on the other side of the world with new knowledge about the effects of sin. One of the first things he must do is “wash away all of Hell’s stains,” assisted by his guide, Virgil. By its very title, this book reflects on purging, cleansing, and latent hope for a journey to heaven. Having suffered the gruesome tortures of the sinners he sees in hell, Dante while in Purgatorio (purgatory) encounters repentant sinners, who must physically enact reform. The aftereffects of hell give Dante the pilgrim new sight. Through vivid, visual examples of bad and good behavior, he will ultimately be prepared for a vision of God in the even lesser-read part three, Paradiso.

Democracy in America by Alexis de Tocqueville The Souls of Black Folk by W.E.B. Du Bois

After previously publishing his social, autobiographical, and historical essays in journals and magazines, Du Bois’ The Souls of Black Folk came out as a collection in 1903. Du Bois called this extraordinary gathering of his reflections “the strange meaning of being black at the dawn of the Twentieth Century.” The metaphors used to articulate racial divide in America were “color line” and “veil”—lifted to reveal what he called the “twoness” of being at the same time American and black. This double consciousness, inspired also by his study of German philosophy, could only be solved by a union of intelligence and sympathy for justice to be able to triumph. After the Reconstruction era, it was education and books that could elevate the inner life of black Americans to “dwell above the veil.”

“Street Haunting: A London Adventure” by Virginia Woolf

Woolf’s Mrs. Dalloway is the last book in a two-year survey of humanities in our curriculum, though I offer her essay, first published in 1927, echoing many of the motifs in the novel. Like Mrs. Dalloway, the essay uses direct observation and gives focus to memory and the idea of an escape. “Rambling” signifies both an external journey surveying the streets of London and an interior journey into what she calls one’s “central oyster of perceptiveness”—indeed pearls keep resurfacing throughout. The impetus for the story is the narrator’s desire for a pencil, compelling her to cross the threshold into a deeper observation of life. What comes after are micro-surveillances that linger on the everyday, the grotesque, the accidental, and ultimately to a secondhand bookstore, which she calls the “anchorage” to “balance ourselves after the splendours and miseries of the streets.” It is the secondhand bookshop where readers can make “sudden capricious friendships with the unknown.” I leave you to discover what happens after she gets the pencil.

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How To Leave A Group Text On Imessage And What Happens

Like any group activity, sometimes you may find yourself stuck in a conversation that you want to escape out of. If you’re that someone who wishes to exit a group text on iMessage, in this post, we’ll help you find a way to avoid it from distracting you in the future. 

Related: How to Share Your Live Location with Someone over iMessage

How to leave a group text on iMessage (2 Ways)

You can check if the group you’re a part of is an iMessage group by simply looking at the conversation bubbles’ color, which will be blue for groups filled with Apple users and green if any one of them isn’t an Apple user. 

1. On iPhone/iPad 

On this screen, tap on the group chat you want to leave. 

When the group chat opens on the screen, tap on the group icon or name at the top of the chat thread. 

This will open the group info screen. Here, scroll down and select the ‘Leave this Conversation’ option. 

In the prompt that appears at the bottom, confirm this process by tapping on ‘Leave this Conversation’ again. 

2. On Mac

If you wish to leave a group text inside iMessage on macOS, you can do that by launching the Messages app from the Applications folder, Launchpad, or Spotlight. When the Messages app opens on your Mac, select the group thread you no longer want to be part of and tap on the ‘i’ icon at the top right corner of the Messages app window to open the group’s Info screen. 

You will now be removed from the iMessage group. 

What happens when you leave a group on iMessage?

The group thread will continue to exist inside the Messages app for you to access at any later time, for as long as you wish to keep it. As for the messages that are visible within the group, you have access to all the messages that you and others shared during your time on it. However, no new messages will appear inside the group chat and you’ll only see the last message that was sent to the group before you left it. 

Why can’t I leave an iMessage group?

The ‘Leave this Conversation’ option can instantly remove you from an iMessage group inside the Messages app. However, this option may be grayed out when there’s someone in the group text who isn’t using iMessage or if they don’t have an iPhone. If one member of a group text sends conventional SMS/MMS texts, then there’s no way you can leave that group.

Apple doesn’t provide an explanation for why you cannot leave such a group, especially when SMS texts have become dated in present times. If you’re wondering how to differentiate between an iMessage group and an SMS group, there’s an easy way to know that. iMessage groups are the ones you can choose to leave from and chat bubbles sent by you in this kind of thread will appear blue in color. 

If you’re part of an SMS/MMS group on the Messages app, chat bubbles of your messages in the group will be colored in green. In such cases, it means that one or more members of this group aren’t iPhone or iMessage users. 

How else can I avoid groups texts on iMessage without leaving?

Although Apple makes leaving an iMessage group a simple affair, exiting a group might not be the best-suited option for you for ethical reasons. If you feel that you’re part of a group you cannot permanently escape from, the least you could do to prevent being blown up with this group’s messages is by muting all of its notifications. Muting notifications of group messages works similarly to that of muting a message thread on iMessage as it silences all future messages that you receive via the group. This can also be helpful for SMS/MMS groups that you, otherwise cannot leave from. 

To mute a group text on iMessage, open the Messages app and select the thread you want to mute notifications from. 

When the group text opens up, tap on the group icon or name at the top of the screen. 

This will open the group info screen. Here, scroll down and enable the ‘Hide Alerts’ toggle. 

This way, you will continue to receive messages in the group but you will no longer get alerts for each and every message that’s shared in it. When you ‘Hide Alerts’ for a group, no one in the group would know that you have muted alerts for the group. 

That’s all you need to know about leaving group texts on iMessage. 

RELATED

How Do Online Classes Work? What To Expect When You Sign Up

Taking classes online, also known as distance learning, can be a more flexible and affordable method of developing new skills than traditional brick and mortar classrooms.

Table of Contents

In this article, I will take a look at how online classes work, their benefit to your education and career, and I will sample some online sites with tips on how to get started.

Online Classes Provide Flexibility

At times when people are unable to access typical face-to-face learning opportunities, people usually turn to online education opportunities.

This not only applies to higher learning centers but to parents looking for online learning opportunities when access to public schooling is limited or where you have physical limitations that keep you from attending traditional classes.

How Do Online Classes Work?

Technology has revolutionized the way people learn today. With online classes, instead of having to sit in a classroom, students of all ages can study and learn from home. Depending upon the class or program, you’ll need to have a stable internet connection and some required software (usually just a word processor).

What Is an Online Classroom?

Online classes are offered and run much the same way they do in a classroom setting. The difference is students don’t have to be physically present at a school.

The structure of each online classroom will vary depending upon the course or program and the goals of the organization. However, the typical scenario is for a student to log into a virtual portal or a learning management system (LMS) that hosts and tracks online learning.

Students can access this virtual portal to view their course materials, check their grades, contact professors, and monitor their progress. Check with the school to see if their LMS is accessible on mobile if you want to be able to access courses from anywhere.

Online Classes are Flexible

One of the many benefits of taking online classes is the ability to work at your own pace. However, there will still be deadlines to follow for when assignments are due.

Some programs offer live online lectures at specific times where students can participate in discussions via videoconferencing software.

How to Get Started and Log On

Students need to have access to the software used by the online university. They will start by going to the website and logging on with their credentials to access the material related to the courses they’re taking. Different educational institutions use various LMSs. Each one is different in format but has the same function and are all cloud-based.

LMS software gives students access to their assignments and grades from any remote site. It provides a platform for teachers and students to ask and respond to questions and provide feedback.   

Some of the more popular LMS software programs are:

ProProfs LMS Software

ProProfs LMS is an intuitive SaaS system. Educators can create online courses, share, and track performance in a centralized virtual classroom.

It provides completely self-paced eLearning solutions and adds interactivity to the course that includes flashcards and quizzes.

Moodle

Moodle is a free open source online LMS that provides educators with a customizable and scalable platform for online learning.

It delivers a quality distance learning experience by providing a secure and personalized environment. 

Canvas LMS

Canvas LMS is an open, intuitive, cloud-based platform for online classes. It provides online course material, gives assignments to students, and streamlines all the content and digital tools for teachers and students to use.

Blackboard

Blackboard helps global learners and educators enable institutional and student success. They accomplish this by leveraging innovative services and technologies.

Google Online Learning Tools

Whether it’s through Google’s G Suite Education, Google Classroom or Google Hangouts Meet for business, Google makes it easier for people globally to learn online.

Enterprise-level features are available on the Google Platform including the capacity to record meetings and save them to Google Drive, and live stream for up to 100,000 viewers.

Also, students can join classes using Google Classroom to pursue their online studies.

How to Sign in to Google Classroom

There are three types of user accounts you can use to log into Google Classroom:

Your personal Google Account used outside of a school setting, often for homeschooling.

A school account, also called a G Suite for Education account, that is set up by the institution. Students can get account login details from the IT department at the school or from their teacher

The G Suite Account set up by the educational institution’s administrator

Some Programs Include In-Person Components

Some programs require students to participate in a campus residency program before, during, or after the course is over. Lengths, requirements, and details will vary according to the program and the educational facility.

Some programs include networking events, informational sessions, and team-building activities. Health fields such as nursing will likely require spending time in a clinical setting.

How Can Students Interact with Teachers and Classmates Online?

Students can communicate with others as well as their teachers using discussion forums, video conferencing, social media, phone, and email.

What Should Students Expect from Online Classes?

One primary concern for many students enrolling in online programs is that they think they need to be a technical guru.

This is not the case at all.  Online learning has evolved over the years to become more user-friendly while the student population has become more skilled in digital technology in general. One of the benefits of learning in a classroom is the ability to be presented with different opinions and viewpoints from educators and classmates. 

However, this same type of interaction is possible in a virtual classroom environment.  The flexibility of online classes is well-worth any surmountable potential challenges students might face.

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