run cmd as admin is denied

I have physical server running windows server 2016, I have only one administrator account

When I try to run CMD as admin it shows 

I can't run>cmd as admin as well,

I check the windows Update to see if there any update missing or corrupted updates installed,

It's appear that there is problems installing some updates, with the error code 0x800706be

I tried to remove the last update but that does not worked as well

I try to uninstall ESET File Server Security as it may cause this privileges, 

I moved to uninstall programs but it failed

Then the failure message says

Note that this is a production server so I have a very limited time to control or shutdown, and I can't point to the starting point where is these error comes from ?