Reformat Internal Harddrive.

[Busdriver101]

I've had Windows 7 installed to my old HDD and time to move to SSD. So I installed Windows to the SSD and now I want to reformat the HDD to just be space for storage, but in Disk Management it won't let me reformat it.

 

[bbhaag]

Have you tried highlighting all the folders on your old HDD drive then right click and delete them?
If it doesn't let you delete them have enabled admin privileges for that drive?

 

[Elixer]

Just unconnect the SATA cable to the HD, and power on system, and boot into windows.
Then once you are there, plug the SATA cable back into the drive, and you should be able to do whatever you want with it.

My bet is that the paging file is still on that drive.

You could also format the drive outside of windows, like with gparted, or whatever else.

 

[billyb0b]

do a quick single pass wipe with dban on the HD