If you’re getting the “An administrator has blocked you from running this application” error on your Windows 10 PC, it may be a matter of concern. Users are reporting that even if you are signed in to the Administrator account, Windows 10 still gives the same error and prevents you from accessing many system and third-party applications. There have been instances of mmc.exe blocking access to system applications such as Device Manager and Disk Management. So, if you’re facing these issues on your Windows 10 computer, follow our four-point guide below.
Fix “An administrator has blocked you from running this application” Error (2021)
We’ve talked about four different methods here, and each has its own application. Some are workarounds, others give you instant access, and one method gets to the root of the problem. Let’s go ahead and learn all the methods to find the solution for the error “An administrator has blocked you from running this application”.
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Turn off Windows SmartScreen
You should use this technique when trying to open a third-party program such as a game or utility application and encountering the error “An administrator has blocked you from running this application”. This will disable the unverified publisher popup when you try to access the file.
1. Press the Windows key once and press “smart display” in the search box. At the top you will find “Application and Browser Control”. open it.
2. Then, “Reputation-Based Protection” in Windows Security.

2. Disable here “Check apps and files” and you are done.

3. Open the blocked app this time and you should be able to access it. just to be on safe sidefor future file checks you should re-enable “Check applications and files” in Windows Security.

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Scan Your Computer
It may sound like a bit of common advice, but trust me, if you can’t open system programs like Device Manager or Disk Management, your computer has most likely been hijacked by malware. Windows 10 often throws the error “An administrator has blocked you from running this application”. digital signature cannot be verified from such programs. Basically, the integrity check is failing and therefore your system won’t let you run the program even if you are an administrator.

So I highly recommend Deep scan your computer using Windows Security. If you are looking for a powerful third-party antivirus for Windows 10, I recommend Malwarebytes (Freeoffers in-app purchases). After scanning, quarantine all threats and restart your computer. You should now be able to access blocked programs.
In this case, if it still doesn’t work, clean install windows 10 on your PC to completely remove the virus from the system. You can also reset your computer via the cloud to clean up Windows 10.
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Force Open Program with Command Prompt
If you encounter the error “An administrator has blocked you from running this application”, this method is a workaround. You will be able to access system programs like Device Manager or run any third party application from Command Prompt. However, if you want the problem to go away completely, you should still clean Windows 10.
1. Press the Windows key once and press “cmd“. After that, click on “Run as Administrator”.

2. Write here system name Enter the program and press enter. For example, devmgmt The system name for Device Manager. Similarly, diskmgmt It is the system name for Disk Management. You can find the system names for web-based applications and run the command in CMD to access these programs.

3. If you want to run a third-party program, then copy file path Select the application from the window’s address bar and run it in Command Prompt. You will then be able to run the application without any issues.

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disable uac
This is our final solution for dealing with the “An administrator has blocked you from running this application” error. This method really works for you like Essentially disabling the entire User Account Control (UAC) system on your PC. However, I wouldn’t really recommend this procedure unless you need urgent access to a program. If still the antivirus doesn’t fix the problem, I think a clean install of Windows 10 is the only safe option out there.
1. Press the Windows key once and press “regedit” in the search box. Now, click “Run as Administrator”.

2. In Registry Editor’s address box, paste the following path and press enter. It will take you directly to the correct folder in seconds.
Computer\HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System

3. Here, double click on “EnableLUA” and change the Value data to “0”. Now, click “OK” and restart your computer.
4. Once you have done this, you will now be able to: run any program from system applications to third-party programs.

Fix mmc.exe Dialog in Windows 10
This is how you can fix the “An administrator has blocked you from running this application” error on your Windows 10 PC and resolve the mmc.exe dialog that keeps popping up. As I repeated above, this error is most likely caused when a system has been compromised, so backing up your files and clean install of Windows 10 is recommended.
Anyway, that’s it for us. In case your PC slows down over time, follow our guide and speed up Windows 10 in easy steps. And if you have any questions, let us know in the comment section below.
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