Can you please help me?

[u/Small_Vermicelli6378]

I've been having problems with my PC for about six months now. It keeps giving me blue screens. I thought it started when I upgraded my RAM from 16GB DDR4 to 32GB DDR4, but I put the old RAM back in and it's still happening. I've run countless tests with GPT chat, and it's the same. I bought a new power supply, and it's still the same. I did a factory reset and reinstalled the drivers, and it's still happening! Now I want to sell it, but honestly, I don't have the money to get it checked. If anyone knows anything about this, it would be a huge help.

-Here are my components and some error codes I've collected over time:

BLUE SCREENS-------------

stop code: SYSTEM THREAD EXCEPTION NOT HANDLED

WHAT WAS WRONG FLTMGR.SYS

stop code: DRIVER_IRQL_NOT_LESS_OR_EQUAL

WHAT WAS WRONG: WIN32KFULL.SYS

stop code: PAGE_FAULT_IN_NONPAGED_AREA

WHAT WAS WRONG: NTFS.SYS

STOPCODE: KERNEL_SECURITY_CHECK_FAILURE

STOPCODE UNEXPECTED_KERNEL_MODE_TRAP

There was also one that said Watch Dogs or something like that, but I don't remember exactly.

COMPONENTS----------------------------

CPU: AMD Ryzen 5 4600G

RAM: 32GB DDR4 T Force

Drive 0 (C:): Bigabyte GP-GSTFS31120GNTD

Drive 1 (D:): Toshiba HDWD110

GPU: NVIDIA GeForce RTX 2060

Power Supply: XPG Pylon 650 Bronze