The program disk keeper cannot defrag C drive. I've tried defrag via My Computer, local drive, properties, then tools, still cannot defrag. error message reads "disk keeper can not support more than one instance"1 person needs an answerI do too

go to http://therushvillecomputerguy.com/downloads.aspx . You will see a link to Defraggler. This should help you, its a replacement. Just use it instead of the one from windows.Serving the Community one Computer at a time www.therushvillecomputerguy.com Please post a response to let us know whether our answer helped or not.