If you have been using a Windows operating system for a while, you might know that the operating system is full of bugs. We are sure you have dealt with Windows BSOD errors once in your lifetime. However, Microsoft is swift to release updates in which it fixes previous bugs.

Windows errors are of two types: those that don’t do much harm and those that don’t allow users to log in. Some errors prevent users from starting applications like the ‘Another instance is running’.

So, if you are also getting the error message while starting any software, we have decided to discuss everything about Windows 10 ‘Another instance is running’ error message here.

How To Fix ‘Another Instance is Running’ Error On Windows 10/11

So, what is the ‘Another instance is running’ error, and why it occurs? Another instance of running software means the installer is already in the background. So, users need to close and kill the running process to fix the error message. Here, we have discussed a few of the best methods to fix the ‘Another instance is running‘ error message.

1. Remove Ad-Aware Web Companion

If you get the ‘Another instance is running’ error message every time your computer starts, you must remove the Ad-Aware web companion. For those who don’t know, Ad-Aware is an anti-spyware tool, but few users have reported fixing the error message after removing the Ad-Aware web companion.

So, to remove Ad-Aware Web Companion from Windows 10/11, head to the Control Panel > Programs & Features. Now, find and remove ‘Ad-Aware Web Companion’ from the list of installed programs. Once done, restart your computer; you will no longer get the ‘Another instance is running’ error message.

2. Find and Close The Process From the Task Manager

If you are getting the ‘Another instance is running’ error message while starting any particular software, you need to close that software. If the software is not running in the background, open the Task Manager and check the processes tab.

Some software runs silently in the background, leading to an ‘Another instance is running’ error message. So, open the Task Manager and close the process associated with the running software.

3. Restart Your Computer

If you get the ‘Another instance is running’ error message even after closing the background process, you need to restart your computer. A simple restart can fix most Windows errors, including Another instance running.

So, before following the next methods, restart your computer and check whether the error persists. If you still get the error message after the restart, follow the next methods.

4. Reinstall The Problematic Software

We are sure that stopping the problematic process from the Task Manager would have fixed the ‘Another instance is running’ error message. However, if it still appears, you must reinstall the Problematic software.

So, head to the Control Panel > Programs & Features and uninstall the problematic software from the list. Once uninstalled, install it again. This will probably fix the ‘Another instance is running’ error message from Windows.

5. Create a new user account

 

If you find the problematic software or process associated with the ‘Another instance is running’ error message, you don’t need to create a new user account. However, if you cannot find the problematic process or software, you can create a new Windows 10 user account.

In this way, you will get a separate account, and since the new user account will have no link with the old one, you will not get the ‘Another instance is running’ error message. For creating a new user account, follow this article.

6. Run the SFC/DISM Command

System file corruption can sometimes be the sole reason for ‘Another instance is running’ error on Windows. While running the SFC/DISM tool isn’t a sure-shot fix, there’s no harm in running these two tools on Windows. So, if the ‘Another instance is running’ error is constantly troubling you, run the SFC/DISM Command.

1. Click on Windows Search & type Command Prompt. Right-click on the Command prompt and select Run as administrator.

2. When the Command Prompt opens, execute the command:

sfc /scannow

3. If the System File Checker utility returns with an error, execute these commands one by one.

DISM /Online /Cleanup-Image /CheckHealth
DISM /Online /Cleanup-Image /ScanHealth
DISM /Online /Cleanup-Image /RestoreHealth

4. After executing the commands, restart your Windows 11 PC.

That’s it! This is how you can fix Another instance is running Windows error by running the SFC/DISM commands.

7. Download all Pending Windows Updates

The ‘Another Instance is Running’ error in Windows can result from a software bug or glitch. Several users have reported fixing the issue by installing all pending Windows updates.

So, if you are still getting the issue, you need to download & install the latest updates to fix it. Here’s how you can download all pending Windows updates.

• Open the Settings App and select Windows Update. On Windows 10, select Update & Security.
• On the Right side, click on the Check for Updates button.

That’s it! Now Windows will automatically find all available updates and download & install them.

So, these are the best methods to fix the ‘Another instance is running’ error message on Windows. Let us know in the comment box below if you know of any other way to fix the error message.