Always try system restore to when it worked.
Never update drivers when it's that tuned in.
Simple things like plugging in some USB drive can kill performance.
my specs are as follows,
windows 7 X64
Intel core I7 -4790k @4.00GHz.
Z97A SLI Krait Edition (mobo)
X2 GTX 980 SLI
16 GB Ram
just a few days ago i was able to run any game at 60+ fps at max settings, and in 4k. But now on any game i frequently play at the lowest settings im not getting above 20 fps. is there anything that would suddenly cause that? none of my parts are much more than a year old, any help is appreciated.
so far i have cleaned dust, inspected various parts for signs of damage.
ran malware and virus scans, 0 threats detected
checked temps of cpu and gpu under load, its running between 40-50C
i have ran CHKDSK no errors found.

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