Trustedinstaller Permission Fixed

If you attempt to delete a core Windows file (like kernel32.dll ), the SYSTEM account—which represents the OS itself—is actually denied access. Even the OS, in its default runtime state, does not own its own critical components. Only TrustedInstaller does.

Technically, TrustedInstaller is a ( Windows Modules Installer ), specifically tied to a security principal known as a "Service SID" (Security Identifier). trustedinstaller permission

The TrustedInstaller is a built-in user account in Windows that is used to install, update, and modify system files and registry settings. It is a member of the Administrators group but operates with a higher level of privilege. The TrustedInstaller account is used by the operating system to perform tasks that require elevated permissions, such as installing Windows updates, drivers, and service packs. If you attempt to delete a core Windows file (like kernel32