Advertisements Okay ... power surge killed my Roamio Pro power supply... (15 year old S3 survivied and is going with me into the zombie apocalypse) Since I'm opening it up to fix/replace the PS I thought I would upgrade my HDD while I'm there, and have a WD Purple to drop in, but this is my first Roamio HDD upgrade. Question 1: Do I need to use MFS Tools to prepare the drive or transfer information? I was running TE4 and copied off what I could with PyTivo in anticipation of rolling back to TE3, so my S3 and Roamio could share files directly. I really don't want/need to transfer anything. Question 2: I recall that my Roamio initialized itself, there was no extensive guided setup like with my S3. So, is there a step in that process where I halt it and intialize it under TE3 instead of TE4, or do I have to let the restart/initialization finish and then roll it back? Thank You !