OS believes I have used the letter D for drives and won't give it back

I have been trying to recover from a broken 1511, 2 apparently failed drives (not real sure about one of them), and getting the OS to have the double secret administrator activated.

There are so many things not explained and cause unwanted changes. I activated the super admin account. Then I tried to include my user ID into the administrator group. At some point I was having a popup for everything that could possibly use admin. Every time I started an application previously installed. I fixed that but I am really not sure how. Then I had three logon versions on the boot screen. One for admin, one for me that is a member in the admin group, and one using my ID name but led to a version of the OS that made applications and internal parts crash.

I made the extra name DISAPPEAR (again, not sure how) and now have one for me and one for administrator. There may still be something odd going on with names.

My immediate problem is replacing the failed disk drive that was my D drive. On it was essentially all the data I have. The other drive to fail was the external RAID, which contained the image of the broken D. And I do not have a working backup system because of the broken drive. I have a Mediasonic RAID cabinet. They say I should not attempt RAID 5 (I was using RAID and want to upgrade safety) because some drives will break things. No list of drives that can be used. I am using Seagate 4TB Barracuda drives. I could use some idea if these drives are OK, in addition to my major problem.

THE MAJOR PROBLEM - The OS refuses to let me assign the letter D to the drive. Somehow it thinks it owns that disk somewhere. Much of the assorted data I have on the real D has multiple links from applications running on the C drive. They, obviously, point to D*****. I need to get the new drive set as the sole official D, not E or higher.

I know that is a lot of text, but I tried to help understand what was going on.

Can you post a shot of disk Management ?

If you have Raid setup in the Bios, that may have something to do with it.

It is an external RAID - visible to the computer as a single normal disk. his is not related to the problem with the missing D.

Disk manager knows the problem drive is there and shows properties properly. Just will no longer let me assign D to anything. The list when trying to relabel it starts at E.

This does not work for you?



As for the dvd or cd drive, scroll further down the disk management and you will find it in the lower left where you can manage it there much like with the menu options shown above.