Running Windows 10 on a custom built PC (hardware below). It loads normally, reaches the Desktop and I can do anything... for about 3 minutes, then (computer still running) the screen disconnects - restarting fixes it for another 3 minutes. before switching from the Microsoft basic driver to the nvidia driver, I had the same problem. Now, I only have the basic drivers installed and I have to install the latest ones on there, which could be the problem. But since I only have 3 minutes to work with, if the driver installation takes more time than that I will not know when it is finished, and I can't hit any buttons or prompts. So before I run the risk of shutting down mid-installation, I was wondering if anyone knows a fix/what the problem is? Thanks for any advice.
Hardware:
CPU: Intel i5-3570k
GPU: Nvidia EVGA GeForce GTX 970
Motherboard: Asrock Z77 Extreme 4
OS: Windows 10, 64-bit
Comment if you need more details.
Strangely, I can spend as long as I want in the BIOS/UEFI/any other non-OS section for as long as I need, no problem. So I can access the command prompt from UEFI settings if need be.
EDIT
A few more details:
Just before the crash, a box comes up in the bottom right corner saying "Activate Windows"
Keyboard and mouse inputs do not work
Bios date is from 2013, and system time (set to automatic time-setting) says that the year is 2358