From weird sites not one from Mozilla.org or similar mirror sites..always some urgent update
Am I losing my mindshould I reformat and fresh install.
Case is spot lesshave no issues with dust or heat.
Paid AV and paid anti malware find nothingtried free ones too!
Deep infection somewhere that even paid AV, anti malware can't find is what I am thinking..
99.99% of the time when fans are spinning very loud its because the computer is hot. this can be caused by either dust slowing or stopping air flow in the heat sink of the laptop OR the computer is doing something very intensive….
i have NEVER seen a virus that makes the fans spin quick (which is a good thing since it would keep the computer cooler)
The fan thing could just be cause of a clogged exhaust area. Try using compressed air to clear it out.
If you have run multiple antivirus scans & nothing comes up, good.
You've given us so litt;e actual information how can we tell what is wrong? All you've said is your fan is noisy and that you have Windows 8!
What makes you think you are infected?
There may be lots of dust accumulated inside your laptop. Turn off your laptop, blow hot air & clear off dust particles near fan areas
have you run the AV programs from SAFE MODE before anything loads
old dirty fan.
Desktop, replace fan.
laptop, up shi t's creek
Reinstall the operating system.