The eventual intent is to only have the new drive fitted, the old drive will be there initially for transition purposes. It is formatted with primary and secondary partitions.
They will both be connected on SATA.
When I go to do the build and create a primary and secondary partition on the new HDD will the presence of the second drive, with its partitions, cause any problems?
Should I leave it disconnected during the initial build and connect after the Windows installation?