The Request is Not Supported Error: 5 Ways to Fix It

Missing DLL files could prevent you from launching an app

by Claire Moraa
Claire Moraa
Claire Moraa
Claire likes to think she's got a knack for solving problems and improving the quality of life for those around her. Driven by the forces of rationality, curiosity,... read more
Reviewed by Alex Serban
Alex Serban
Alex Serban
Windows Server & Networking Expert
After moving away from the corporate work-style, Alex has found rewards in a lifestyle of constant analysis, team coordination and pestering his colleagues. Holding an MCSA Windows Server... read more
Affiliate Disclosure
  • The request is not supported error can happen when you try to launch an app but it fails to do so.
  • It's highly likely that your system has been infected by a virus so running a system scan should be able to fix the issue.

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The request is not supported is a dreaded message that can appear on anyone’s PC. According to most users, they have encountered the message when they tried running some of their programs or even Windows services.

The details of the error are still fuzzy but what’s common for every user who has encountered the error is that the apps won’t open when they try to launch them. For now, we have compiled a few solutions that have proved helpful to many users.

What does the request not supported mean?

The error can occur for several different reasons, but it typically indicates an issue with the device driver or the program that’s being used. It usually occurs when users try to run a program or application that has been installed on their PC. 

When this happens it is an indication that the program(s) have been modified and are no longer compatible with the operating systems. Other reasons why this may happen include:

  • Virus infection – When a virus finds its way to your PC, all your programs are at risk. This is because they contain malicious code that can alter how an app works. A reliable antivirus can help you avert such risks.
  • Missing/corrupt system files – A corrupted system file could prevent your PC from working properly. The cause of the problem might be a software update that causes incompatibility.
  • Incomplete/missing updates – Windows updates are essential for the smooth running of your PC. If the update was downloaded from an unreliable source, or if it was unable to install because of a problem with the file structure, you may get the request is not supported error.
  • Missing DLL files – If you have missing DLL files and an application requires one or more of these DLL files, you may be unable to launch the program. The files may have been removed from your computer by virus protection software or another program.
  • Incompatible programs – If you try to install a program that is not supported by your version of Windows or from an unofficial site, you may be unable to launch it.

The request not supported error can also manifest itself in various ways such as:

  • The request is not supported disk management
  • Error 50: the request is not supported windows process activation service
  • The request is not supported cmd

How do I fix the request not supported error?

Before you attempt any of the fixes below, try the following basic checks:

  • Ensure your PC is up-to-date with the latest Windows updates. Also, check out what to do if Windows Update is not showing.
  • Uninstall any apps that you have recently downloaded.
  • Try alternative methods of opening the programs.
  • Attempt to launch the programs in compatibility mode.
  • Finally, try restarting your PC, and here’s what to do if your PC restarts automatically.

1. Run a DISM scan 

  1. Hit the Windows key, type cmd in the search bar, and click Run as administrator.cmd-run-admin-w11 unexpected kernel mode trap windows 11
  2. Type and Enter the following command: DISM.exe /Online /Cleanup-Image /RestorehealthDISM-RESTORE faulting application path
  3. Restart your PC.

2. Run the System File Checker scan 

  1. Hit the Windows key, type cmd in the search bar, and click Run as administrator.cmd-run-admin-w11 unexpected kernel mode trap windows 11
  2. Type and Enter the following command: sfc /scannow
  3. Restart your PC.

3. Run the chkdsk command 

  1. Hit the Windows key, type cmd in the search bar, and click Run as administrator.cmd-run-admin-w11 unexpected kernel mode trap windows 11
  2. Type and Enter the following command and remember to replace f with the letter of the drive in question: chkdsk /f X:chkdsk-f repair corrupted directory

4. Run the Windows Store Apps troubleshooter 

  1. Hit the Windows key and click on Settings.settings windows 11
  2. Click on System on the left pane then Troubleshoot on the right pane.Open system troubleshooter
  3. Select Other troubleshooters.
  4. Scroll down, locate Windows Store Apps and click the Run button.troublshoot windows store apps

Expert tip:


Some PC issues are hard to tackle, especially when it comes to corrupted repositories or missing Windows files. If you are having troubles fixing an error, your system may be partially broken.
We recommend installing Restoro, a tool that will scan your machine and identify what the fault is.
Click here to download and start repairing.

The Windows Store Apps troubleshooter should be able to shed more light on the issue of whether the problem affects all apps downloaded from the Microsoft Store.

5. Start Windows in Safe Mode

If you have performed all four methods above but you’re still getting the error, it may be time to start your PC in Safe Mode. Safe mode will open only the essential drivers and services, making it easier to test whether your problem is a driver or a Windows issue.

If the problem still persists, try performing a custom install of Windows. Custom installs are also much faster than using the default installation options on Windows 11 machines.

When you use a custom install, you also get to save all of your personal files. This means that you won’t have to worry about losing anything important on accident or by accidentally deleting it.

If something goes wrong with your computer, then you will be able to access all of your data without having to worry about losing anything important. You can learn more about the difference between a Windows upgrade and a clean install in our detailed article.

Let us know of any additional methods not mentioned here that may have worked for you in the comment section below.

Still having issues? Fix them with this tool:


If the advices above haven't solved your issue, your PC may experience deeper Windows problems. We recommend downloading this PC Repair tool (rated Great on to easily address them. After installation, simply click the Start Scan button and then press on Repair All.

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