My pc crashes whilst playing high end games like Witcher 3

[discotonight]

So, I've never been on this website before and I've been getting desperate for answers on how to fix my pc cause I'm not a smart person when it comes to PCs. I have a GTX 980 and an Intel Core I5 and everything was fine when I first got it obviously. A month into getting my new PC, I accidentally downloaded a virus and malware onto my computer. I removed it in April with help from my brother by resetting my pc entirely. The virus and malware was deleted but now when I run games like Witcher 3, Overwatch, CSGO, I get low fps and my pc crashes, it doesn't blackscreen, it just freezes.

I'm really confused as to what the hell is going on with my pc because I thought the reset would fix my pc but instead, it seems to have made it worse in my opinion. It really sucks for me cause I can't play games like CSGO with my friends and I'm limited to only League of Legends. My friend told me it might be a problem with my CPU and another friend told me it might be a failing part in my pc (hopefully not).

If anyone can please help me with this I would be very grateful. Also, like I said I'm not smart with PCs so please try to be as simple as possible when telling me how to fix this problem. Thanks.

 

[MerrJ0210]

Specs would be helpful

 

[discotonight]

Specs would be helpful

Graphics: GTX 980
CPU: Processor Intel(R) Core(TM) i7 CPU 950 @ 3.07GHz, 3068 Mhz, 4 Core(s), 8 Logical Processor(s)
RAM: 8GB
OS: Windows 10

 

[dontlistentome]

You seem to be lying for some reason. You said you had an i5, then later it's an i7.

 

[discotonight]

You seem to be lying for some reason. You said you had an i5, then later it's an i7.

Yes. It was an accident on my part. I thought it was an i5 but it turned out to be an i7.

 

[discotonight]

So just as an update, I was on League of Legends and clicked on a YouTube link the developers advertised and my PC froze the minute I got on the site, so I've discovered it isn't just in-game that my PC crashes, it just crashes in general.

 

[ghost141rn]

Format your HDD and do a clean installation of windows and see for yourself, if its a virus issue