Need Help Please After Windows Update

After the last Windows 10 update a few days ago, my main PC crashed almost immediately and then continued (unsuccessfully) TRYING to auto repair, reboot, and just going in a never ending loop.
Having backups, I decided to try a full reinstall of Windows10.
All was fine until I plugged in any USB device in main motherboard (rear) USB ports, at which point, the fault reoccurred.
I've tried 4 times now, but if plug anying into the rear USB ports, I'm forced to reinstall windows, as a repair never works.
This is pretty much a disaster for me as I use this PC for work.
Can anyone please help with this?

It sounds like you need either updated drivers for the USB controller, or there is a hardware fault in them. Either way, I would be surprised if it was causing Windows 10 to be corrupt beyond repair. Have you tested the hard drive and memory out?

DeaconFrost said:

It sounds like you need either updated drivers for the USB controller, or there is a hardware fault in them. Either way, I would be surprised if it was causing Windows 10 to be corrupt beyond repair. Have you tested the hard drive and memory out?

Thanks for the quick reply. As I didnt know how to test RAM or HDD, I swapped them for others, but the fault was exactly the same. When it happens, there appears to be no way of interrupting the reboot loop, and windows reports auto repair is not possible:-(
If I install a very early version of Win10, everything is fine.