My Computer has randomly started applying Read-Only properties to all the folders in my C:\ drive including subfolders. I am able to unapply the readonly attribute, but after i do it comes back after about 10mins. This has been very annoying because when i try to download anything and save it to my documents it doesnt let me because the readonly atrribute has been reapplied.

I have ran scans with AVG Anti Spyware and Virus, and i have also checked over my HJT log and both are fine. I haven't done anything that would have caused this either so I wondering what happened?

I've actually already done that as well as run registry mechanic.