When you try to download/install/use Windows Malicious Software Removal Tool, you may encounter the “Windows Malicious Software Removal Tool not installing/downloading/working” issue. This post from MiniTool provides solutions.

Microsoft Windows Malicious Software Removal Tool is a freely distributed virus removal tool developed by Microsoft for the Microsoft Windows operating system. However, some users report that they encounter the “Windows Malicious Software Removal Tool not installing/downloading/working” issue.

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Next, we will introduce how to fix the Windows Malicious Software Removal Tool not installing on Windows 11/10 issue.

Fix 1: Check Internet Connection

If the Windows Malicious Software Removal Tool not downloading on Windows 11, first, it’s recommended to check your Internet connection. An unstable Internet connection can cause the issue. You can also restart your modem.

Fix 2: Delete SoftwareDistribution Folder

You can also try to delete the SoftwareDistribution folder to fix the “Windows Malicious Software Removal Tool not installing” issue. To do that, you can follow the steps.

Step 1: Type Command Prompt in the Search menu. Then right-click it to choose Run as administrator:

Step 2: Run the following commands one by one and press Enter:

net stop wuauserv

net stop cryptSvc

net stop bits

net stop msiserver

Step 3: Now go to the C:\Windows\SoftwareDistribution folder and delete all the files & folders inside by pressing the Ctrl+A keys to select all and then right-clicking to choose Delete.

Step 4: After emptying this folder, you can either restart your computer or type the following command one by one in Command Prompt and press Enter to restart Windows Update-related services:

net start wuauserv

net start cryptSvc

net start bits

net start msiserver

Fix 3: Manually Windows Malicious Software Removal Tool

If the issue still appears, you can try to install Windows Malicious Software Removal Tool manually.

Step 1: Press the Windows + R keys together to open Run dialogue box. Type regedit.exe in it to open Registry Editor.

Step 2: Navigate to the following key:

HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\Windows

go to the path

Step 3: Check if there is the Installer key. If not, create it. To do this, right-click the Windows key and select New then go to Key.

Step 4: Name it as Installer and press the Enter key. Right-click the Installer key and select New then scroll to DWORD (32-bit) Value and press Enter.

Step 5: Name the new value DisableMSI and press Enter. Double-click the value and set the Value data to 0.

Fix 4: Install Windows Malicious Software Removal Tool in Safe Mode

If you are unable to install Windows Malicious Software Removal Tool, it might be because the uninstall process is interfered with by third-party processes. The solution is to boot your Windows 10 computer into Safe Mode and then install the program in Safe Mode. You can check how to start Windows 10 in Safe Mode, and then try to install the application.

Fix 5: Use Microsoft Program Install and Uninstall Troubleshooter

Microsoft has a free Program Install and Uninstall Troubleshooter utility. You can use it to fix the “Windows Malicious Software Removal Tool not installing” issue.

Step 1: Download Microsoft Program Install and Uninstall Troubleshooter and run it.

Step 2: This will bring up options where you have to choose the issue you’re dealing with. Select Installing.

Step 3: This will open up a list of programs. Select the one you’re having problems with.

Step 4: You’ll be given an option to either uninstall it or try other fixes.

Final Words

These are common solutions to fix “Windows Malicious Software Removal Tool not installing”. If you have any other useful methods to remove this error, leave a comment below to let us know.

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