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What is Java executable JAR file?

A JAR file is an archiving format that not only stores directories and source files and can also be run as executable files. Such Java ARchive files can contain Java class files that will run when the JAR is executed.

While Archiver tools like 7-Zip can extract content from JAR files, but doing that is pointless – we need to execute the files just as we run the EXE files.

How to run a JAR file in Windows 11/10

Since Java or JAR files can’t run on Windows on their own, you need to install the Java Framework or what is popularly called Java. That said, Java files can be dependent on a particular version of Java. So the steps you need to take to open JAR files on Windows 11/10 are:

Download and install Java.

Set the System path

Run the JAVA file

Set Java file association

Establish a file association with Java runtime.

1] Download and install Java Framework

To run a JAR file on Windows, you need to install Java on your system. Go to Java Download Page, and install it. The default will install the latest version only. However, if your JAR file needs a different version of Java, you can download it from here.

Sometimes, an existing older version of Java can cause an issue. So, if you are facing such a problem, make sure to remove the older version first. Use the official Java Remover tool to get rid of it. Then install the latest version.

2] Set System Path for Java

Next, you need to set the JAVA_HOME path. It ensures that any JAVA file you run can find the necessary libraries for the program. You can also use the command line to echo the Java path to determine if it is correct.

3] Run a Java or JAR file

If you have a JAR file which is not running on its own, then you can use java JDK to run it. Open Command Prompt, and type java -jar name_of_jar_file.jar. It will execute the JAR file automatically.

4] Set the Java or JAR file association

The last step is to establish a file association with Java runtime. It will make sure that every time you run, you are not asked to select a program that can execute it.

Select ‘Choose another app.’

And then choose Select app from the computer.

You should see ‘Java(TM) Platform SE binary’ listed in this context menu but don’t select it.

Locate the file which can run the JAVA or JAR file which is available in the path we suggested above.

Make sure to check the box which says, “Always use this program.”

Once done, all future JAR files will automatically open with Java run time library. You should see the Java icon for all of these files.

How run Java JAR from command line?

You’ll need to use the java command to run a .jar file

If you don’t have java installed, you can fix that by installing the default-jre package.

We hope these tips were easy to understand and were of help to open or run a Java file on Windows 11/10. 

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How To Lock A File Or Folder In Windows 11/10

Your computer is the home of a lot of important information. Be it your business reports, bank statements, personal information, or more. And if multiple users are using your computer, you might want to safeguard your files. Hence, you may ask how to lock a file or folder in Windows 11/10. Locking a folder or file in Windows isn’t a tricky thing to do. Windows itself gives you all the necessary options. So let’s go ahead and learn about it.

Why you may need to Lock a File or Folder?

There are many reasons why you may feel a need to lock a file or folder. The most common reason is that you share your computer with others. Alternatively, you want to safeguard your files or folders and prevent them from being accidentally deleted. Or if you believe your PC is at risk of getting hacked, someone might steal sensitive information from you.

Locking a file or folder can help you control access to the data and ensure that it is not modified or deleted accidentally or intentionally. It is also helpful in cases where you need to ensure data integrity is maintained.

Windows comes with a built-in option to lock a file or folder. The feature is known as File encryption. Encrypting a file or folder with Windows ties the encryption to your account. This means that when you are logged in, the operating system automatically decrypts the files for you. However, if someone logs in using a different account, they will not be able to access files that were encrypted using your account.

How to Lock a File or Folder in Windows 11/10?

To lock a File or Folder in Windows, follow these steps:

Next, tick the Encrypt contents to secure the data check box.

The way it works is that if anyone else tries to access it, the person will not be able to do it because it’s linked to your account. The details of which can be seen using the following steps:

Go back to the Advanced Attributes

And it will mention who can access the file once the encryption is complete. If someone else tries to access the folder or the file, it will prompt for the account password.

Note: Previously, Windows created an encryption certificate and placed it under Credential Manager. You could take a backup of the key, carry it to another PC, and open the folder using that. In Windows 11, things have changed. As you can see in the above image, while it is tied to the user account, there is no option for a recovery certificate. The certificate is not generated at all.

Read: How to make a file or folder Private in Windows.

Using Windows’s built-in file encryption feature, you can lock your files and folders on Windows 11/10. However, if you are using Windows Home, the option to lock a file will be missing. You can use free file and folder encryption software to achieve the same.

Can I lock a file or folder in Windows so it cannot be deleted?

Once you lock a file or folder, it cannot be deleted or modified by any other user. You can delete or modify an encrypted when using your account. If you want a folder that can be moved, you will need to use third-party applications or this simple text file trick to protect folders. However, use it only for files that are not that important.

TIP: This post will show you how to password-protect Office documents, files, folders, games, programs, etc.

Can I lock a file or folder in Windows so specific users can only access it?

How To Run Windows Memory Diagnostic Tool In Windows 11/10

Windows 11/10 has a Memory Diagnostic Tool that you can use to check for possible memory problems, including testing the Random Access Memory (RAM) on your computer. The tool helps you figure out bad memory, memory issues, and usually takes 20 minutes to complete.

Windows Memory Diagnostics Tool

Alternatively, you can also type ‘


‘ in Start search and hit Enter to open it.

Choose between two options for when to run the Memory Diagnostics Tool.

You can Restart now and check for problems.

Or you can select Check for problems the next time I start my computer.

If you choose to restart your computer and run the tool immediately, make sure that you save your work and close all of your running programs. The Memory Diagnostics Tool will run automatically when you restart Windows.

Two Test Passes will be run.

Advanced options for running the Memory Diagnostics Tool:

You can adjust the following settings:

Test mix. Choose what type of test you want to run: Basic, Standard, or Extended. The choices are described in the tool.

Cache. Choose the cache setting you want for each test: Default, On, or Off.



Type the number of times you want to repeat the test.

The default is Standard, and it includes all the Basic tests, plus LRAND, Stride6, WMATS+, WINVC, etc.

The Basic test covers MATS+, INVC, and SCHCKR.

The Advanced test includes all Basic and Standard tests plus Stride38, WSCHKA, WStride-6, CHCKR4, WCHCKR3, ERAND, Stride6, CHCKR8, etc.

If you change your options, press F10 to save and start the test.

Else you may press Esc to continue running the default test.

It might take several minutes for the tool to finish checking your computer’s memory.

Read: Windows Memory Diagnostic Tool stuck?

Once the test is completed, Windows will restart automatically. If the tool detects errors, you should contact your computer manufacturer for information about fixing them since memory errors usually indicate a problem with the memory chips in your computer or other hardware problem.

You may also want to try some Advanced Memory Diagnostic on Windows, with Memtest86+, and maybe check out some more PC Stress Test free software.

Is Windows Memory Diagnostic tool any good?

It’s an excellent program and a free tool to check if there is anything wrong with your RAM. If the tool shows any symptom of an issue, then you can further check with another program.  Along with the standard checking tool, it also offers checks such as ERAND, Stride6, CHCKR8 to find problems with the installed RAM.

Why does Windows Memory Diagnostic Tool take so long?

It doesn’t perform one test and gives a result. Instead, it checks using multiple programs, and if there is a problem, you will know about it. Combine this with the amount of RAM, and it takes even more time. This tool should be used when you have an issue with the memory, and you want to be sure before replacing it.

Read: Windows Memory Diagnostic displaying no results.

Can I exit Windows Memory Diagnostic Tool?

It’s only testing the memory, and it should be fine even if you have exited in between. However, you will have to force shutdown the PC to exit the tool. I would still suggest that you better wait it out. Keep the PC plugged, and get something else done in the meantime.

Can RAM suddenly go bad?

Any hardware can go bad with time or if there is a manufacturing fault. The same applies to RAM. If everything looks good, the memory test can reveal if there is an issue with the RAM. If there is a fault, it would be best to replace it with a new RAM.

TIP: See this post if you receive Only part of a ReadProcessMemory or WriteProcessMemory request was completed message.

Shortcut Keys To Open Task Manager On Windows 10/11

Task Manager is a handy little tool that lets you see the programs opened in the background, what processes each program has, allows you to customize which apps you want to open on startup, and more.

There are 7 tabs, each offering a different set of tools: processes, performance, app history, startup, users, details, and services. Using the Task Manager conveniently helps perform multiple functions. These functions include viewing running background apps, force closing rogue apps, disabling a process after exiting an app, or viewing the current state of your system’s resources.

The following Task Manager shortcut methods can provide that easy access:

Method 1: How to Open Task Manager using a Keyboard Shortcut

The fastest path to access Task Manager is to use the built-in keyboard shortcut that is standard on the Windows operating system. This keyboard is the easiest Task Manager shortcut when functioning correctly.

Step 1) Press down Ctrl+Shift+Esc at the same time.

Step 2) Your Task Manager will appear.

Another built-in Task Manager shortcut is to press ctrl alt delete.

Method 2: Open Task Manager from the Start Menu on Windows 11 / 10

The Start Menu is a straightforward approach to launching Task Manager. Your Start menu is a list of all your currently loaded programs.

Here are the steps to launch Task Manager from the Start menu:

Step 2) Scroll down to the Task Manager icon.

Method 3: How to Open Task Manager from Windows Search

Windows Search allows you to find any element of your computer system. That includes your Task Manager. When you use Windows search, you’ll notice that it provides an alphabetical prompt.

Here are the steps to use Windows Search to access your Task Manager:

Step 2) Type in “Task Manager” in the empty space.

Method 4: Use the Windows Power Menu shortcut to Open Task Manager

Once your Windows Power Menu icon opens, there will be multiple pathways across your computer system. The Power user menu can also grant you fast access to your Task Manager.

Here are steps for using the Windows Power Menu:

Step 2) Scroll down to the Task Manager option.

The power user menu opens an excellent shortcut if your keyboard stops functioning and you only have access to the mouse.

Method 5: Use the Command Prompt to Open Task Manager on Windows PC

You can develop PC problems that prevent you from using your computer system. Going into the Task Manager can help shut down some of those issues. The Command Prompt is another viable path to access your Task Manager.

Note: The Command Prompt is also referred to as the Windows Powershell.

Here’s how to gain access to that portal:

Step 2) Scroll down to Command Prompt or Windows PowerShell.

Step 3) Type in taskmgr.

Step 4) Hit enter, and the Task Manager window will appear.

Method 6: Open Task Manager from the Control Panel

Your Windows Control Panel can also grant you access to the Task Manager. This approach has several steps that seem cumbersome. However, it is a viable access path when other paths are blocked.

Step 1) Go to Windows Search.

Step 2) Type of Control Panel and hit enter.

Step 4) In the search box, type Task Manager.

Step 5) Hit enter, and the Task Manager will pop up.

Method 7: How to Open Task Manager using the Run Box

Sometimes it is practical to tell your computer to run a command directly. That can happen when you type that command into the rub box.

This is how to use that method:

Step 1) Press the Windows+R keys on the keyboard to open the run prompt.

Step 2) Type taskmgr into the prompt box.

Method 8: How to Create a Desktop Shortcut for Open Task Manager

You probably have several desktop shortcuts for access to files and programs. You can add your Task Manager to that group.

Step 1) Locate the chúng tôi file (see below).

Step 3) Select the Send To option and then select Desktop.

Step 4) The Task Manager desktop icon will appear.

Method 9: Run the chúng tôi Executable File

Every application that is running on your computer has an executable file. The executable file for Task Manager is chúng tôi That file can be found in the

C:WindowsSystem32 folder on the Windows C: drive.

Here are the steps to Run the chúng tôi Executable File:

Step 1) Open the File Explorer option on your computer.

Step 2) Search for the following location: C:WindowsSystem32

Step 3) Scroll until you find chúng tôi That is the Windows Task Manager executable file.

Method 10: Pin Task Manager on the Taskbar

You will understand how essential quick access is when you use your Task Manager for the first time. One of the fastest pathways to your Task Manager is to create its taskbar shortcut.

Here are steps to Pin Task Manager on the Taskbar:

Step 1) Follow the instructions to the Task Manager executable file explained in the above section.

Step 3) Choose the Pin to Taskbar option.

Step 4) The Task Manager icon will now be on your taskbar.


Your computer Task Manager application is a vital tool to help access all the currently running programs on your computer.

Fast access to your Task Manager will let you shut down a program to improve your computer’s functions.

There are several methods you can utilize to access your Task Manager.

The quickest method is the built-in prompt Ctrl+Shift+Esc.

Additional methods involve searching for the Task Manager through command prompts or executable files.

You can also set up access to your Task Manager with a taskbar icon shortcut.

Opening Task Manager in windows with these steps will become easier.

How To Open Rw2 Files In Windows 11/10?

If you have a Panasonic Digital Camera then you know how good its RW2 files can be. This file format allows you to capture an image in RAW that is an unprocessed or uncompressed form of the image. With this, you can twitch the White Balance, Exposure, Contrast, Saturation, Color Profile, etc of an image to make it look the way you want.

However, some photoshop applications don’t support RW2 files. That’s why we present you with some of the best applications in the market that allow you to view RW2 files in Windows 11/10.

How to open RW2 files in Windows 11/10

RW2 files are RAW images captured by Panasonic Cameras. These are some of the free applications that you can use to open RW2 files in Windows 11/10:

Irfan View

FastStone Image Viewer

XnView Classic

Chasys Draw IES Viewer

 Picasa 3

Let us talk about them in detail.

1] IrfanView

The first app on our list, IrfanView, supports RW2 and many other formats such as GIF, PNG, JPG, etc. However, you need to download both the software and its plugins to view the RW2 file.

With the help of IrfanView you can not only view but edit the RW2 images as well.  You can Zoom, watch the image in Full-Screen and do some meaningful adjustments to the image such as adjusting the White Balance, Exposure, etc.

Apart from the discussed features, IrfanView has a couple of exciting tools that can be very helpful for making the RAW image out of the Panasonic camera you own.

Batch Conversion or Rename: If you want to rename and/or edit multiple images in a go then this tool is what you need.

Effects: Following are the effects that you can add to your image with IrfanView

3D Buttons



Oil Paints

Edge Detection

Median Filter




Rain Drops

Insert Speech Bubbles/Ballons

There are more effects that you can add by installing free plugins.

The only caveat here is that this software is only available for private use.

2] FastStone Image Viewer

Next on our list is FastStone Image Viewer, it’s another free app to open RW2 file and customize it according to your taste.

Apart from RW2, it supports some other unconventional formats such as TIFF, ICO, BMP, etc making it a one-stop-shop for all your viewing needs.

Just like IrfanView, it allows you to view images on full-screen, zoom in and out, and has other quirks such as layout mode and other navigation options. Or if you want to view all your photos in a SlideShow you can do it with its help.

Screenshots: With this application, you can take Screenshots and store the file in JPG, BMP, and PNG file format.

Effects: It doesn’t have dozens of effects unlike IrfanView, however, there are some exciting effects that can add panache to your image. They are:

Border Effect

Frame Mask


Bump Map


Oil Painting


Obscure (Blur)

So, this is one of the best ways to open RW2 files in Windows 10.

3] XnView Classic

XnView is a free and light photo editing tool that allows you to open RW2 files in Windows 10. It is a cross-platform software that works on Windows, macOS, and Linux seamlessly.

One thing worth mentioning here is that it can not be your permanent Photoshop as it doesn’t have enough features. But still, you can twitch somethings like color depth, gamma, add filters, and other simple things.

Apart from RW2, it supports some other common and rare file types such as GIF, PNG, JPEG, etc.

Although, it is a simple app there are some exciting features that you must use. They are:

Filters: XnView has some exciting filters that can instantly change the look and feel of the image.

Capture screen: Just like FastStone, XnView can also take screenshots with the Capture screen feature.

But, there are two caveats here, it can only be used for personal use and the photo-editor is not very capable.

4] Chasys Draw IES Viewer

Next on our list is Chasys Draw IES Viewer. It comes with Chasys Draw IES Suite that is a combination of two apps, Chasys Draw IES Artists and Viewer.

It supports a wide range of file types such as JPEG, RW2, CRW, CRW2, etc. Using it is effortless but the caveat is that just like other apps on this list, Chasys Draw IES Viewer doesn’t have all the tools that a pro photo editing tool consists of.

However, it has all the basic tools that you need to view RW2 such as full-screen mode, zoom, etc, slideshow, etc.

Let us look at some of its exciting features.

Bluetooth Support: You can share your file via Bluetooth from the app itself.








Logic AND

Login OR

There is a lot more to this application that you can find out by downloading Chasys Draw IES Viewer from here.

5] Picasa 3

Picasa is an OG when it comes to photo-editing, it is one of the best free photoshop tools in the market. It supports almost all the type of files such as RW2, JPG, PNG, RAW, CRW, etc.

Let us see some of the features of Picasa.

Library View: Picasa searches your computer for images and displays them in one place called Library View.

Timeline: The timeline allows you to view images as per the date of their upload.

Picture Collage: As the name suggests it is a tool for making a collage.

The tool may have been retired by Google, but it is still available for download at some download sites.

The RAW images coming out of a Panasonic Camera have RW2 file type. There are a lot of image viewers that refuse to open an RW2 image. These however will surely open RW2 file in Windows 11/10.

How To Run Windows Updates From Command Line In Windows 11/10

Windows Updates can be run from PowerShell and Command Prompt in Windows 11/10. In this article, we will be checking out how to do it. Windows Update is one of the most highlighted features of Windows 10. Because with the release of Windows 10, Windows was offered to the customers as a service rather than a product. Under the scenario of Software as a Service, this led to the Windows Updates on Windows 10 being on by default and without an option for anyone to disable it.

Now, while some criticized this move by Microsoft, ultimately this is a step towards the customer’s greater good. Because Windows Update helps the users stay secured against all kinds of threats and provide them with the latest and the greatest from Microsoft. So, for those who appreciate this service, today we are going to talk about another way to run these updates.

Run Windows Updates from Command Line

The following methods will be carried out to run Windows Update from Command Line on Windows 11/10-

Using Windows Powershell.

Using Command Prompt.

1] Run Windows Update using Windows Powershell

Running Windows Updates on Windows Powershell will require you to manually Install the Windows Update module, Get Windows Updates downloaded and Install Windows Updates. And for this, open Windows Powershell by searching for Powershell in the Cortana search box and run it with Administrator level privileges.

Install the PSWindowsUpdate Module

Type in,

Install-Module PSWindowsUpdate

to install the Windows Update module for Windows Powershell.

Check for Updates

After that,


to connect to the Windows Update servers and download the updates if found.

Install Updates

Finally, type in,


to install the Windows Updates downloaded on your computer.

Check for Microsoft Updates Add-WUServiceManager -MicrosoftUpdate Install specific updates only Get-WindowsUpdate -KBArticleID "KB1234567" -Install Hide specific Update Install-WindowsUpdate -NotKBArticle "KB1234567" -AcceptAll Skip Updates belonging to specific categories Install-WindowsUpdate -NotCategory "Drivers","FeaturePacks" -AcceptAll

Related: Command-line switches to deploy Microsoft software Update packages

2] Run Windows Update using Command Prompt

Command Prompt on Windows Operating Systems exists since a very long time whereas Windows Powershell is comparatively new. Hence, it has similar capabilities to run Windows Updates, but the highlighting point here is that you do not need to download any module for Windows Updates.

First, open Command Prompt by searching for cmd in the Cortana search box and run it with Administrator level privileges.

Finally, type in the following commands and hit the Enter key in order to perform the respective operations,

Start checking for updates: UsoClient StartScan Start downloading Updates: UsoClient StartDownload Start installing the downloaded updates: UsoClient StartInstall Restart your device after installing the updates: UsoClient RestartDevice Check, Download and Install Updates: UsoClient ScanInstallWait

It is worth noting that, the Command Prompt commands mentioned above are just meant for Windows 11/10 only.

How to enable the Windows Update service in Windows 11/10?

If the Windows Update service is disabled or is set to run manually, then you can enable the Windows Update service in Windows 11/10 using the following steps:

Type services in the Search box and use Enter key

In the Properties window, set the Startup type to Automatic

Press the Start button to run the service

Press Apply button and OK button to save the changes.

How do I know if Windows Update is installed in Command Prompt?

If you want to check the history of installed security updates or critical updates in Command Prompt on Windows 11/10, then first open the elevated Command Prompt window and execute wmic qfe list command. This will show the update description, update ID (or Hotfix ID), Installed by, Installed On, etc., information. Here, do note that not all Windows Updates are visible. So, it is better to access the Update history section in the Settings app of Windows 11/10 to see all the installed updates.

Related read: How to Update Drivers using Command Prompt.

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