Windows things. Someone's antivirus had been expired.

I've seen computers suddenly go slower when the antivirus expired, then run normally after the expired antivirus was uninstalled. I have a suspicion that some antivirus software does it to make people think they have a virus and renew their subscription.

Anti-virus doesn't make computer to run faster.
Smart people don't need anti-virus on their machine because they know where we can find right things on internet rather than downloading junk wear which contains malwares.

If you have to use Windows, use an open-source anti-virus. Will get you some names later.

I wish my antivirus license expired :(

Was using Norton for years. It uses 99% CPU. *Delete* now I use linux.

@MCCshreyas +1
Long time since I last installed an antivirus on Windows and I never had any problem.

@Salim Me want :)

@Spacebrain me too, dude.

Please stop using antivirus...

Not clicking on fraudulent links and not downloading suspicious files will give you much better protection than any antivirus ever could.

There's this great tool that anti-viris companies hate, it's called common sense.

i can recommended hypestkey software for new antivirus)))