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How to remove files that can not remove by 'You require permission from TrustedInstaller ...' on Windows Server 2008

Created: 06 Jan 2013 • Updated: 06 Jan 2013
Yasuhisa Ishikawa's picture
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After verifying backups by restoring files to alternate location, it sometimes happens that we can not remove restored files by 'You require permission from TrustedInstaller to make changes to this file' error as Figure 1. This most likely happens when restoring system or program files. Owner of unremovable files is TrustedInstaller user, and only this user has full control right.

Figure 1 File Access Denied

Figure 2 Owner of unremovable files

Figure 3 Permissions of unremovable files

We can manage to remove files by changing owner and permissions of unremovable files. Here is an example of removing System State files restored to C:\restore(See HOWTO36039 for how to restore System State to an alternate location).

Step 1 - Open Security tab in properties window

Figure 4 Select a folder where System State files are restored

Figure 5 Click Advanced button in Seciruty tab

Step 2 - Change owner of files and subfolders

Figure 6 Click Edit button in Owner tab

Figure 7 Check 'Replace owner on subcontainers and objects'

Step 3 - Change permisson of files and subfolders

Figure 8 Click Change permissions button

Figure 9 Check 'Replace all childobject permissions ...'

Step 4 - Remove restored files

Figure 10 Delete folder

Figure 11 Delete system files

Figure 12 Completed!!