Taking Back Permissions in Win7

This issue can be caused due to the incorrect permission settings for the administrators group.

I would like to suggest you perform the following steps to troubleshoot the issue.

1. In the "Start" menu, locate "Command Prompt". Right-click and choose "Run as Administrator". If you are prompted for an administrator password or confirmation, type the password or provide confirmation.

2. Type the following commands, then press "Enter" to execute them one by one. Please note the space before the command and its parameter.

takeown /f C:\windows\system32\logfiles\wmi\rtbackup

cacls C:\windows\system32\logfiles\wmi\rtbackup /G administrators:F

3.     Restart the computer to check the issue.