Windows 10: Computer underperforming, can't open windows settings & other problems

So I have had this PC since 2013 and bought the graphics card last year in November and a 2TB storage HDD this year. The reason i bought the graphics card was i couldn't play newer games at even the lowest settings and when i first bought it the guys that mounted it said i will have to reset my pc and i said ok. It was running very well with games like Fortnite at max graphics running without lag and i could record and stream easily. I have reset my computer fully and partialy many times over the years and 2 times this year. In July i had to start to put settings lower on Fortnite and i thought it may be because of the updates it has all the time and maybe that is the case, but other games i also couldnt play that well anymore.
In September i started to fill up my C drive and i dont remember now why, but i did a reset. Then later i bought the hard drive and that didnt help much. I did another reset. There was no sound. I tried everything, but at the end i had to do a partial reset (reset windows settings without affecting personal files). After that i had sound, but the NVIDIA Control Panel is missing, i had random freezes in my game and BSOD's. My friend told me to try and swap the ram sticks and the freezing and BSOD's seem to have vanished, but i still dont have the NVIDIA Control Panel (not like i thought that would get it back). I have tried uninstalling drivers, restarting pc so it installs them back, reinstalling manually, reinstalling Geforce Experience and more... I remember sometimes seeing that C drive is corrupted or something like that and maybe thats why its not working, but i dont really think that resetting my pc again would fix that. Maybe i have to take out the corrupted drive and reinstall windows with using a part of the 2tb drive for a seperate virtual drive for only windows?
I don't really know much about how computer specs rank, but i think my specs are pretty good: (from program Speccy)

Operating System
Windows 10 Pro 64-bit

CPU
AMD Athlon X4 845 9 °C
Carrizo 28nm Technology

RAM
8.00GB Dual-Channel DDR3 @ 803MHz (11-11-11-28)

Motherboard
Gigabyte Technology Co. Ltd. F2A68HM-S1 (P0) 36 °C

Graphics
LG TV (1920x1080@60Hz)
22M35 (1920x1080@60Hz)
2047MB NVIDIA GeForce GTX 1050 (MSI) 36 °C

Storage
1863GB Seagate ST2000DM008-2FR102 (SATA (SSD)) 41 °C
465GB Seagate ST500DM005 HD502HJ (SATA ) 40 °C

Audio
Realtek High Definition Audio

The bad thing is that i really dont know what is causing the issues to fix them.
SUMMARY: My PC is 5 years old, little upgraded and i think it is underperforming. Half a year have had issues, reset it many times. Right now the only problem is i dont have the NVIDIA Control Panel and its almost like my pc doesn't recognize the graphics card fully or smthn.

Side-note: on my second monitor i had task manager open and when playing Far Cry 5 the CPU had 90% usage and all the others had 0-10%

:)

 

settings wont open

Hi,

Thank you for posting your query in Microsoft Community.

Please answer the below question to understand the situation better,

• Are you facing this issue on a local account or the Microsoft Account?

Please follow the below steps and check if it works,

• Press “Windows key + I” to open the Settings screen.
  

I suggest you to sign out from the current user account, restart the computer and then sign in to the Administrator account to check if this helps

Reply us if you have further queries. We will be glad to assist you.

 

Sound card amplification settings

Yeah unfortunately ASUS and Realtek are not stepping up and fixing this it seems. Wherever I see such problems mentioned on forums some users are suggesting just uninstalling the Realtek driver and using the Windows audio driver.

 

Windows 10 Tweaks

Pressing “Windows+Pause Break” (it’s up there next to scroll lock) opens the “System” Window.

Windows 10: In the new version of Windows, Explorer has a section called Quick Access. This includes your frequent folders and recent files. Explorer defaults to opening this page when you open a new window. If you’d rather open the usual This PC, with links to your drives and library folders, follow these steps:

• Open a new Explorer window.
• Click View in the ribbon.
• Click Options.
• Under General, next to “Open File Explorer to:” choose “This PC.”
• Click OK

credit to Lifehacker.