Fix You Require Permission From Trustedinstaller
The only way to still modify these files is to change ownership. Ownership guarantees that you can read/write/execute files and folders without any hindrance. If you have completed the action you are performing, it is strongly recommended that you change the ownership back to TrustedInstaller to prevent it from modified again. Taking Ownership from TrustedInstaller If you can’t find your account name using this method, you can try selecting it manually from the list of user groups available....