Alright I will explain this as best I can: I already own a Seagate 1.5TB External Hard drive that works great. In MY COMPUTER it shows up as my F: Drive. Well the problem is I purchased an identical External Drive because I have filled the inital one. When I plugged the new one in it initially said installing hardware, followed by ready to use. Well it does not show up in MY COMPUTER anywhere. So I started doing some research and I have gone into Computer Management, and Disk Management. It shows the External Hard drive on "Disk 1". On Disk 1 there are three sections listed. The part on the left says "200MB Healthy EFI System" the largest part in the middle says 1396.94GB Healthy (Primary Partition) and the final section says New Volume 127 MB NTFS Healthy Primary Partition. From what I have researched, it says that I need to add a drive letter. But when I right click on it the "Change Drive Letter and Paths" is grayed out and will not let me click on it. Any ideas on what I am missing?

Right-click on where it says 1396.94GB. Is Format enabled? If so, click it and go through the wizard. Choose Quick Format because a full format would take forever on that drive. If it's not enabled, perhaps you could try clicking Delete Partition instead, then right clicking again and selecting New Partition. Follow the wizard. Don't forget to check Quick Format. WinSimple Software CompTIA A+ Certified

Is that drive a USB, Firewire, or eSATA? Do you know is the drive came with some integrated backup software installed. What type of files are you storing on the drive? It appears to be at least partially formatted using EFI. If you want to use NTFS on that drive, which would be recommended, then delete all current partitioning and use quick format, as suggested above. BTW, I can't fathom what you have filled a 1.5TB drive with but IMO you are really gambling with those files. There is an adage with hard drives. It is not IF your drive fails, but rather WHEN your drive fails. If you really have a need to store that much data then you should consider a better method of storage. You need something with better data protection than a single copy of the data on a mechanical device. Can you tell us what you filled the first drive with?

hi you may have tried this already , tweakui http://www.microsoft.com/windowsxp/... the tab in 'mycomputer/drives' are all the drives been ticked available?

Rayburn, where you said delete partition, the only other option other than HELP is delete volume, is this the same as what you are talking about?

You said you right clicked on where it said 1396GB. There should be a delete partition option there. I think you'd be safe though to delete the volume as well as the EFI partition as OtheHill suggested. WinSimple Software CompTIA A+ Certified

Rayburn you are my hero of the day. Thank you so much it is working now