Well, I could not find a Win 7 forum, so I hope this will work. I recently installed a 2 TB internal drive. I was able to sucessfully do a Windows System Back Up to that drive a short while ago. I went to do it again the other day and it said that I could not do it because I do not have administrative rights to access the disk. Any ideas? Eric

Hi Eric, did you encounter any error code during the backup process? I suggest you first check the solutions in the following threads: Error:0x80007005 Access denied while performing backup in windows 7. http://social.answers.microsoft.com/Forums/en-US/w7performance/thread/27f1d3a0-d992-4d0a-ba4e-19641809b2a2 Windows 7 RTM Backup continues to fail with "Access Denied" - 0x80780148 http://social.technet.microsoft.com/Forums/en/w7itprogeneral/thread/92ea2f6d-8a0a-405c-b642-86f5df374294 Hope this helps!Sean Zhu - MSFT