I recently bought a new PC (built from parts) and installed Windows 7 (downloaded) on it. So Win 7 is running on an SSD, working well.
Inside the tower, I have two SATA HDDs, one of them is the old system drive from my old PC, which ran WinXP.
I would like a clean reformat and use both HDDs for storage only, but when I now try to click "format" on that old HDD, I just get the message that "Windows was unable to complete the format".
I tried going via Computer Managetment --> Disk Management, but that didn't work either. Trying format on that gives me the message "Windows cannot format the system partition on this disk".