Windows 10: Unable to access device manager: error mmc.exe this app has been blocked for your protection

my device manager change to mmc.exe and not open.what can do?



*** Modified from mmc.exe ***

:)

 

For mmc.exe I get "This app has been blocked for your protection"


You're able to open MMC.exe now?

For mmc.exe I get - Windows 10 Forums

 

For mmc.exe I get "This app has been blocked for your protection"

@ricecrispies


Your statement above....

Try to start it yourself. See what happens. It is only a shell for the Microsoft Management Console.

In the search at bottom left of taskbar (Cortana box), type MMC. First choice at top of results box should be





Click that choice. You should get





It doesn't do anything by itself, it's only a shell. It needs "snap-ins" added to it in order to actually do something. Event Viewer is an example of a MMC with a snap-in for viewing system logged events.

If you can get to this, then your other "programs" that are calling MMC don't have the privilege to run it.

Be cautious deleting Catroot or Catroot2. They are used by Windows Update. More info here: How do I Delete all contents of catroot2 folder but leave the catroot2 - Microsoft Community

 

Unable To Access Device Manager.

Hi,

Thank you for writing to Microsoft Community Forums.

In order to get clarity on this issue and assist you with appropriate troubleshooting steps, please reply with the answers to the questions below.

1. Do you get any error message or error code when you try to access Device Manger?
2. Are you aware of any changes made to this computer prior to the issue?

I suggest you to post a
Screenshot of the error and please refer
How to post a question on Microsoft Community.