could someone please refresh my memory on the proper procedure (order) for installing new AMD drivers on a 6x GPU rig (mine for 470's but it's probably the same for most Radeon).

Here's my situation. on a Win10 470-4GB x6 rig, I recently tried updating drivers... tried 19.12.2 & 20.4.2 i believe. here is what i did:

- ran DDU
- installed new drivers
- ran pixel patcher right after install completed (before reboot)
- first attempt did not take, had some weird issues so tried again with diff driver version
- 2nd attempt resulted in corrupting my W10 beyond repair so...

- last night i restored W10 and went into BIOS to switch my primary display to onboard graphics

One thing to note is that during both attempts, I had all GPUs still fully plugged into MB and PSU. I think this is where i might have went wrong.

Question 1:  do i need to unplug all GPUs while installing drivers, then only plug them back in after driver install is complete?

Question 2:  do i still need to run pixel-patcher with more current versions of AMD drivers?  I was always using this when using v17 & v18 drivers but wondering if this is still required with their v19 & v20 drivers.