Computer keeps crashing in many different ways and I have no clue how to fix it anymore.

When I first got my computer it worked fine for I believe 1-2 weeks before i started to have issues with it. The computer started to do this weird thing where applications would stop responding and my task bar would no longer highlight when i hovered over pinned applications to my task bar. My microphone won't pick up anything anymore but i could still hear my friends talking in Discord Calls. However, audio coming from my PC and not being streamed through Discord would start to loop back forever. I could still move my mouse around and open and close applications. however things would start locking in place almost like a ghost image. For instance when I would right click on my task bar and click to open task manager to do something about the applications, once i clicked the task manager button the option for task manager would still be clicked even when the option box disappeared. In order to get my computer to work again I would have to manually hold down the power button till it turned off. Any attempts to Sign out, or shut down through windows wouldn't work. It would shut down or sign out forever and not actually sign out or shut down. I've tested my CPU, it came back as fine, I've tested my RAM, it came back as fine, I bought a new hard drive so i know it's not that. I've not tested my GPU yet, I recently had to take the computer to a repair shop where a guy had to fix my mother board and solder something to it, i cannot remember what he told me he did. He fixed the mother board from what he told me. Some times my monitors will go black and not come back on. In this cause i would also have to manually restart my computer. Other times the monitors would go black and restart automatically. I remember getting with my old harddrive a BDOS that said MEMORY_MANAGEMENT which what led me to believe it had something to do with my Hard drive, after getting a new one I haven't had a BDOS saying that since. My reliability history doesn't detect what's wrong with the crashes, however I do have this hardware failure incident that i'll list below. I've tried everything, my CPU and ram is not being over clocked, I've reinstalled windows 3 times, nothing is working. When i first reinstall windows it seems like the problem is fixed because nothing happens and no crashes occur with in the first day. Follow the next though they start happening again. I don't know what to do to fix the problem anymore, or what to do. So now i'm asking for help to see if i can get someone to help me understand what is happening so i can fix it. I also had a problem with my connection to discord calls where it would keep saying "RTC Connecting" and then "No Route" i would have to disconnect and reconnect several times before it would connect. This hasn't happened since i got my new Hard drive.

Hardware Error.

Description

A problem with your hardware caused Windows to stop working correctly.

Problem signature

Problem Event Name: LiveKernelEvent

Code: 141

Parameter 1: ffffd904cfd05460

Parameter 2: fffff8012221eb24

Parameter 3: 0

Parameter 4: 22c

OS version: 10_0_17763

Service Pack: 0_0

Product: 768_1

OS Version: 10.0.17763.2.0.0.768.101

Locale ID: 1033

Extra information about the problem

Bucket ID: rejected_by_rule

Server information: fd4ea87a-f06c-4e77-992b-22dba2479c4f

PC INFORMATION:
CPU: Intel Core 2 Quad Q9450 2.66 GHz
Motherboard: Dell Model 0F642F Nvidia nForce 790i Ultra SLI chip set - BIOS: Dell Inc. Version 1.0.5
Memory: (2x8) Gigabytes of DDR3 Kingston
GPU: NVIDIA GeForce GTX 660ti
Power: 600watt Power supply
OS: Windows Version Microsoft Windows 10 (10.0) Home 64-bit (Build 17763)

If there is any thing else needed information wise please let me know. Thanks!

Just wanna say I'm no expert. I would double check that everything is properly connected to your mobo first (RAM seated properly, GPU fully seated etc). If that doesn't fix your problem I would think the likely culprit is that mobo. You could try to track down a used one for cheap and see if that resolves everything. Maybe try your GPU in another machine and see if it has any issues first. All that said, it sounds like upgrade time. You could build a machine that would smoke your current computer for like 600 bucks.

the taskbar being unresponsive was a thing i had happen in the early days of windows 10. I reinstalled windows & made an entirely new account on the PC to solve it. But yeah, there are a bunch of issues there that i don't have an answer for sadly!

"Memory" usually refers to RAM and not hard drives/SSD's/etc, those are generally referred to as storage devices.

Do you have more than one RAM stick in your computer? If so, take one out and just use the single stick and see if it still has issues. If you do, try switching the one that's still in the machine with the one you took out.