ronaldgorup :
COLGeek :
What anti-virus program are you using now? Is it up to date?
See here for a list of good free anti-virus apps to assist you:
https
/www.tomsguide.com/us/best-antivirus,review-2588-5.html
At this moment Avast but free one and I am certain that my PC is infested with virus but Avast says "Nope man, you trippin" sooo yeah...
Idk I literaly think about factory reset and C disk wipe (except win 7 ofc) because my PC is getting slower and slower plus possibly damaged HHD since it rumbles and makes buzzing noise (probably one of reasons why my PC is slow)
I agree with checking your HDD, does sound like a definite culprit with the buzzing. Sounds silly, but you may also want to try cleaning out the PC (with compressed air or similar) as dust and buildup could be both increasing heat and cause strange noises. Such as if a fan's performance is hindered.
As for whether you have a virus or not, can you provide an example of what Windows (assuming Defender?) is saying the infection is? Did Defender block the infection? If the infection is blocked, this would explain why other AV suites (including ours) didn't detect anything. Perhaps whatever this malware is, is trying to perform the same action over and over, and continues to get blocked.
One thing you may want to try is disconnecting your computer from the net and running a full scan with Avast, as well as a boot-time scan. This can help catch malware before it can re-populate itself. https
/support.avast.com/en-ww/article/132/
Finally, if what you're seeing is just obnoxious popups, it may not be destructive malware as such, but possibly "adware" that doesn't damage your PC or files but can be annoying, and of course cause performance issues. You should also check your browsers for any unwanted extensions, as that could also be the culprit. Sometimes, you may have to reset your Chrome settings to remove these kinds of things.
One last note on protection -- do you have both Defender and Avast Free enabled? It's generally not recommended to run two active protection programs at once, as this can definitely cause performance issues. Installing Avast Free should disable Defender, but if it does not, we'd recommend you do so. Avast has a lot of technology to help catch even unknown or zero-day malware (
CyberCapture and
Behavior Shield, for example) but you can still retain Defender as a secondary active scanner.