Can Simplix UpdatePack 7 conflict with Windows Updates?

[MisterEd]

Last week I bought a motherboard off Ebay and fixed an old computer that had a failed motherboard. The hardware is described in the thread, Is anyone still using Windows 7? #457 .

The replacement motherboard, unlike the old one, supports UEFI so I decided to use it. Before that I did the following from Windows 10:
from the Command Line converted Disk 0 from MBR to GPT
Had to start over with the disk with Windows 7. From Disk Management deleted all partitions on Disk 1 and converted Disk 1 from MBR to GPT.
Rebooted and in the BIOS switched to boot with UEFI.

I rebooted with the setup for Windows 7 Pro with SP1. I installed it on Disk 1. It worked fine with dual-boot.
Instead of waiting for the usual Windows 7 updates I decided to run the latest Simplix UpdatePack 7. That seemed to go OK.
The day was a disaster. I don't remember exactly what I was doing but the computer had a hard crash. Windows 7 was not recoverable so I had to do a complete installation of it. At the time I blamed Simplix for maybe updating at the same time as Windows Update.

Has anyone had any problems with Simplix UpdatePack 7 conflicting with Windows Updates? How about other software or drivers?

BTW, I reinstalled Windows 7 Pro. This time I didn't use Simplix UpdatePack 7. I used the regular Windows Updates. I am now past the point where Edge is installed. I found that is really needed since Internet Explorer is practically unusable.

 

[MisterEd]

I am leaving this thread but got thinking that maybe it was a hardware problem. I started a thread discussing this: Can a overheating CPU shut down and corrupt Windows 7?

If the moderators want I can combine these threads.