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#11
This might work if you want to use imaging, not cloning:
Put the RMAed 160 back in the enclosure.
Split it into 2 partitions, lets call them A and B
Fire up the Seagate imaging tool. Make a rescue disk with it (probably Linux-based). Make an image of the 80 GB and store it on the external on partition A.
Swap drives. The 160 is now inside your PC.
Boot from your rescue disk and restore the image from partition A to partition B. If successful, partition B would be your new C drive.
That may work OK.
Cloning may work OK.
You are just going to have find out. Understand that neither cloning or imaging is a sure-fire operation. Back up all your data before trying either.