My PC might be infected

[27]

So i think my pc might have something on it. The CPU fan sometimes goes very fast even when I dont have anything open but just chrome and sometimes its quiet I have way more tabs open right now. I had kaspersky running so I was not worried but the fan problem didnt go away. So I downloaded Malwarebytes and it had 84 detections. one of them was bitcoin miner. Do Antivirus try to spook you with this when you first run them? 
I might be paranoid but sometimes the fan is spinning really loud and I try to look at task manager and it quiets down instantly. It might be a custom virus? idk I did download pdfs from here Like a dumbass.

Idk what I should do? Is there an Antivirus that can detect or do I just wipe everything?

[642]

I don't use at all ... and I crack a lot and I have to bear in mind that maybe someday I will not skip the day with this shit ... Try Trojans to find ... dr.WEB AND scan new programs with and their pages for the future check via VIRUSTOTAL.COM

Do you remember those who helped YOU?!
Then give them a LIKED & REP+ ❤

[555]

crazy stuff, fix it asap

 

[14]

The best thing to do is a clean reinstall

[101]

use malware bytes to scan ur computer im sure if u have some issues it will find it.
use some shared serial keys some of them are working fine.

[9]

That does NOT sound normal, get it fixed asap. Can't imagine not using an anti virus. I use avast and malwarebytes simultaneously

[27]

Yeah, the best thing to do is to back up your files and do a clean install.

[27]

i clean reinstalled and its back to normal. i didnt keep any files. Thanks everyone