❌ disable the Windows Modules Installer service permanently – Windows Update will break. ❌ Do not take ownership of entire folders like System32 to “speed up” your PC. ❌ Do not delete C:\Windows\WinSxS – it’s a hardlink store managed by TrustedInstaller. ❌ Do not run third-party “TrustedInstaller permission tool” scripts from untrusted sources.

"TrustedInstaller" isn't a program you install; it’s a in Windows 11 that owns and protects critical system files so they can't be accidentally deleted or modified.

Instead of permanently changing file ownership, use tools that let you run specific applications with TrustedInstaller rights. This maintains the original security structure.

In the ecosystem of Windows 11, TrustedInstaller is the ultimate "gatekeeper" of the operating system. While most users believe the Administrator

For folders, add the /r /d y flags to the takeown command and /t to icacls to apply changes recursively.

Enter your , click Check Names , and then OK .

No. SYSTEM has broader privileges but cannot write to files owned by TrustedInstaller without taking ownership. TrustedInstaller is more restrictive.