"Cannot create file ..." / "Zugriff verweigert ..." are typical error messages in cases s.b. does not have appropriate write access to some drive/directory or whatnot. Right click onto the respective drive or folder and check via properties on your security settings. Make sure to assign appropriate rights to yourself. You may need to log in as administrator for this endeavor. Maybe you could ask some knowledgeable friend to walk you through the necessary steps.

Good luck


Martin