I understand using a fresh HDD but I don't understand about putting the original HDD back. I am guessing that the new HDD would be the primary drive but the original will still have win 10 and it's partitions. Could the two drives work together that way?
I am trying to go back to win 7 ult from win 10.
My computer is a HP 8200 sff (refurb) with:
i5 3.2GHZ processor
8G RAM
1 TB HDD
The problem is getting rid of the win 10 partitions. Most disk wiping utilities either don't have partition editing capabilities or are not set up for the win 10...