I had a system 128 GB SSD and a 250 GB file SSD on my WSE 2012, and the 250 GB file SSD filled up, so I got a 512 GB Crucial CT512MX100SSD1. I installed and formatted the 512 GB drive, assigning it letter "M" I then copied the contents of the 250 GB, which was drive letter D, onto the 512 GB drive. I then removed the 250 GB drive, and changed the 512 GB drive letter to "D." I then removed the 512 GB drive and reinstalled the 250 GB drive, and changed the 250 GB drive to "U" I then turned bitlocker on for the 512 GB drive (all drives in the computer have bitlocker on.) Finally, I restored the 250 GB drive and all was well until I restarted the server, as the 512 GB drive was shown as needing to be formatted in Windows Explorer and its format as unknown in Disk Management. I reformatted the 512 GB drive and recopied the contents from the 250 drive and again it ran fine till I restarted, and then again the formatting on the 512 GB wasn't recognized. There are a number of files I would like not to lose on the 512 GB drive (a couple of days worth) and in any case I want to keep it from happening again.
Thanks for your help