Windows 10: Memory use shoots up to 99% after idle time

I'm facing this problem in the last few days. Memory use according to Task Manager goes up to 99%, CPU reaches 80% and the PC becomes almost totally unresponsive.

Based on similar threads I installed RAMMap and here's what is shown.




I installed Poolmon and ran it and this is what I get.




Please note that the first entry does not show a tag. Is this normal?

According to the rest of the listing I should investigate Volsnap.sys and atc.sys. Could you advise what are the next steps?

:)

 

Memory usage 99% during idle and continues after reboot.


My boot scan had nothing special to report and now my memory usage is normal. I know this will creep up on me again. This probably won't show anything in the error logs... right? Let me post what I found in event viewer.

 

Memory 99%


Okay so lately I have been noticing my Memory spike up to 80% then 90% and higher up to 99% even while playing a game. Even after closing said game the memory would keep spiking. It feels like the longer the computer is on, the more it keeps increasing in Memory load. I have very little knowledge of computers...

I updated my graphic card drivers already. Here a few screenshots of my problem:







Also, I went away from my computer for maybe 30 minutes to an hour, and this is what I came back to (apologies for bad picture quality, but I think you can see the problem) it was completely frozen and there were weird things on my desktop, windows wrongly cascading and whatnot, I couldn't do anything so I forcefully shut it down and restarted it. Now it works but I wonder for how long?) :




I'd also like to mention that this is a 2000 computer and it's BRAND NEW, here are the specs:



Graphics Card: GTX 980.

Please help me :/

 

Overclocking / Undervolting guide for Vega 56 or 64?

Here's a quick laundry list:

List of software to use for overclocking and testing
Examples:
Wattman (and how to find and use it, like an overview, including profiles)
Unigine Valley or Heaven (use this for quick testing while changing settings in Wattman and checking for stability / artifacts) ...just suggesting this
How to monitor cores / mem speeds and temps during testing (I've seen screen overlays, and others using GPUz)

Step-by step overclocking in Wattman
Fan speeds
Power limit
Temp limit
Voltages
Core speeds
Memory speeds