My PC has been running worse than usual these past few days

[FearInduced]

My PC even when browsing the web (No Porn EVER) has been significantly slower than in more recent times, and I'm am more frustrated than ever before. First of all, I've always been able to run Rainbow Six Siege at about 140 FPS on very high graphics settings in-game. Now it's like 15 FPS or lower. I literately have no clue what has happened and that's what's so aggravating. Even when my PC loads up tomshardware.com it takes a while to load up this website that I so urgently had to make an account to ask this question. My PC specs are: Quad Intel Core i5 4690K, $350 ASUS GTX 970, 8GB Corsair Vengeance Ram, WD Blue 1TB HDD, EVGA 600W 80+ Bronze PSU. I run games at 1920x1080 res., always. I've already Defragmented my HDD Drive as well, and windows defender on a full scan didn't detect any Malware of any kind. and I've had this built PC for only about 5 months now that I built over the summer, so there's no dust.

 

[hang-the-9]

Install Malwarebytes, reboot in Safe Mode and run a scan see if it comes up with anything. Did this just happen out of no-where or was anything added/removed/uninstalled/etc... right before the issue started?

 

[James Mason]

Rollback to your previous video driver. (google it)
Sometimes new drivers can mess things up.