Windows 10: Cant boot pc after uninstalling GPU drivers and clearing CMOS

So the full scenario is that Ive moved my old NVidia GPU to my new pc and i have bought a AMD GPU for my old pc so my son can use it and so i uninstalled the Nvidia driver and NVidia app and then it asked me to restart the pc. i did so and when trying rto load back up it gives me a debug error 7C and i cant get into BIOS, windows or safe mode. Ive rules out a ram issue and fairly sure it isnt a cpu issue. ive tried with and without a gpu installed with no joy. Though i havent tried with my old gpu.Ive since found i probably should of just used the DDU but after googling it initially google dec

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Boot only with cmos cleared

Law-II: Thank u so much for helpinh but I had already done those steps. I'm testing with minimal hardware and single dimm at a2.

As I said. If I clear CMOS or run MEMOK button the system boots and I can run windows8 stable and fine using F8 (boot menu) but whenever I restart or save any bios settings (save and restart) the system doesn't post anymore.

 

How do you uninstall chipset drivers?

I'm installing a new mobo so I need to uninstall the intel 865g drivers to make way for the P35 drivers.

Can't find any uninstall options in add/remove programs and intel chipset inst listed in driver cleaner.

Any suggestions? *Confused

 

Wiondows 10 PC won't boot unless cmos is cleared

Hope someone can help.

I installed the Win 10 upgrade about two weeks ago to a pc running win 8.1. Everything worked fine for a few days and then it booted to a black screen no cursor. I was able to access the EUFI screen and get things up and running. Things seemed okay until
the pc was powered down. On restart I had to go through the EUFI again. The situation has degraded to the point that now in order to start the pc I have clear the cmos and reset. Has anyone ant suggestions?>

Thanks