This is Windows' security system protecting files, even from you—the administrator. The solution lies in a powerful, built-in capability called **"Take Ownership."
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. windows take ownership
Use the Registry Hack for convenience, stick to the Security Tab for safety, and never click "Take Ownership" on a folder you don't fully understand. Do that, and you will finally be the true owner of your PC. This is Windows' security system protecting files, even