You may encounter the error “Mmc.exe blocked for your protection” on Windows 10 when trying to run Computer Management. Don’t fret, though, this isn’t too big of a deal and can be handled with just a few tweaks to the settings.
Error message “Mmc.exe blocked for your protection” on Windows 10
How to fix “Mmc.exe blocked for your protection” error on Windows 10
Method 1: Enable Computer Management in Group Policy
The “Mmc.exe blocked for your protection” error can be caused by Group Policy settings and to fix it, you need to make a few changes as follows:
1. Open the Run dialog box by pressing Windows+R key.
2. Type mmc and press Enter. This step will launch the Local Group Policy Editor window.
3. From the list of options on the left, click User Configuration > Administrative Templates > Windows Components > Microsoft Management Console > Restricted/Permitted snap-ins.
4. In the right panel, right-click Computer Management and select Edit.
5. Select Not Configured or Enabled.
6. Click OK.
7. Next, close the Local Group Policy Editor.
Restart your PC and you will see that the “Mmc.exe blocked for your protection” error in Windows 10 has been resolved.
Method 2: Disable SmartScreen
Most likely Computer Management is blocked by SmartScreen. To fix the “Mmc.exe blocked for your protection” error, disable SmartScreen and see if it works. Here’s how to do it:
1. Launch Windows Security Center. You can do this simply by clicking the shield icon along the left side of the Taskbar.
2. Click App & browser control from the list of options on the left.
3. Select the Off setting for Windows Defender SmartScreen that applies to each aspect, such as Check apps and files, SmartScreen for Microsoft Edge and SmartScreen for Microsoft Store apps.
4. There will be a warning that the device may be in danger when you turn off SmartScreen protection. If you want to fix a bug, you have to be willing to take the risk.
5. Agree to any confirmation boxes that appear.
All operations are completed. However, if the PC is used by another user who also has admin rights, you will have to make sure that the account has Computer Management enabled in Group Policy (follow method 1).