folder access denied

[tremmor]

its related to a paint program my wife is using. I have to delete a folder.
Says: folder access denied. You need permission to perform this action.

You require permission from trustedinstaller to make change.

Any ideas to overcome this. havent seen this last line before. related to trustedinstaller.

thanks

 

[johnb35]

Try booting to safe mode and deleting it, usually works.

 

[tremmor]

It worked, thanks.

 

[MyCattMaxx]

If it didn't I was going to suggest unlocker, but I was waiting to see if John's suggestion worked first.