I have had same problem with my office computers - Windows 10 & 11's The problem is with an older scheduling program that works great - networked on all the computers. Unfortunately, the company that was Microsoft approved is no longer in business, but we want to keep using it. We started getting this "administrator block" message. Tried all the usual "run as an administrator" suggestions but nothing worked. Finally came up with the answer.
1. Type "CMD" at start box - for the command mode. Do NOT hit enter. Choose "run as an administrator" on the right side. A new command window will open.
2. Using standard commands, locate the file folder holding the blocked app. If you have difficulty finding the location, the initial "blocked by administrator" message shows the path to the blocked app.
3. When finding the correct file location, choose that folder & hit enter
4. Type very carefully the exact name of the executable file. Then hit enter. It should load now in separate window.
HXK in Vegas