Processes in Microsoft 365 for setting up Office apps, redeeming product keys, and activating licenses.
I found this fix :) Fixing the Registry
Programs can be kept from running by adding them to a key called DisallowRun in the Windows Registry. To remove these restrictions, follow the following steps.
- Open regedit by clicking your start button and typing regedit and pressing enter. On Windows XP, Click Start, then run, then type regedit.
- Find \HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer\ and delete the key called DisallowRun.
Then run the office.exe app or installer as administrator.