Not a big deal as win 7 is operating fine, but its a bit frustrating.
HP Z440 Workstation with SSD installed by supplier seems to be the issue.
We found no bitlocker encryption, no HP drive lock. Have use HP system and drive checks, chkdsk /f
And Scandisk etc.
Intel Xeon E5-1620 v3 processor 3.50GHz, 16.0 ram 64 bit Win 7 pro
Autodesk Infrastructure Design Suite 2016 (Civil 3d)