USAFRet :
How did you 'delete' this?
What was on it?
Was this a preinstalled OS, Upgraded from something else, or Win 10 that you bought and installed?
SkyNetRising :
PollyWolly :
Is it possible to retrieve Drive D:?
Post screenshot from Disk Management.
Thanks. I installed Win 10 over Win 7 (FOC as a user) three weeks ago. I tried to do a backup to D: drive yesterday as it wouldn't let me use my external drive but it was too full to complete so I looked up on the web what to do and found instructions on how to delete files from D: drive. Followed instructions to Disk Management but at the final step where it said click Delete, it deleted the drive from the Volume column. (I'm lousy at understanding the jargon.)