Navigate to the registry path: HKLM\SOFTWARE\WOW6432Node\Microsoft\Windows NT\CurrentVersion It looks there was a corruption in the Windows Installer service that could only have been fixed with reinstall.ġ) First I tried if I can install the iCloud with the default Administrator account:Īt the command prompt type: net user administrator /active:yesĬlose command prompt, restart, then try signing into the Administrator account. I must say that my problem was solved with reinstalling the Windows 10.