Even if you log in as an Administrator, you do not automatically have full control over every file. System files (like C:\Windows\System32 ) are owned by NT SERVICE\TrustedInstaller . If you aren't TrustedInstaller, Windows blocks you. This prevents malware or clumsy users from deleting critical OS files and crashing the computer.
This is Windows' security system protecting files, even from you—the administrator. The solution lies in a powerful, built-in capability called **"Take Ownership." windows take ownership
[HKEY_CLASSES_ROOT*\shell\takeownership\command] @="cmd.exe /c takeown /f "%1" && icacls "%1" /grant administrators:F" Even if you log in as an Administrator,