Kenneth Andrews :
carried too much baggage from 7 to10 would like a NICE CLEAN c drive. Have a external backup of 7.
Actualy have 250gb ssd empty in internal ,recently been trying to load everything new on to2 TB hard drive. Any ideas greatly apreciated
So, on your current 500GB SSD C drive, simply move some stuff off it to elsewhere.
Then Upgrade that drive and OS to Win 10.
Then, if desired, clean install on that drive, wipe out everything, and start over.
No need to undo your current SSD as the boot drive.
And you can't swap drives AND upgrade to 10 in the same movement. One or the other first.