Windows 10: Massive fps drop and stutters after windows 10 reinstallation

Before I reinstalled windows 10 I got stable fpsupto 60 fps on all games at low settings but after reinstallation of windows 10 and downloading the SAME latest NVidia drivers, my games ran at horrible fps like 10fps that too with stutters.Earlier I had no custom settings in NVidia panel, just the "let 3d application decide" selected and every game ran smoothly without any issue without setting up any other setting.After reinstallation and setting up NVidia driver, my games were having 10-20 fps max that too with stutters. I had to go into "advanced 3d settings" and set up limit fps to 30 fps

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Sudden FPS drop/Stutter

Since 2 days ago, I just turned on my Computer, and it starting having issues while I was playing Witcher 3 (starts with decent fpsm and then very low fps, dropping to 35, then 20, and stopping at 12 or so, in a matter of seconds, in a matter of 1min of starting the game), also stuttering without any high demanding programs, randomly. I was playing at 45-60 fps, without any stutters or sudden fps drop. Have tried other games the issue persists. Even setup everything to low settings.
I have ran several tests with several tools, all seems normal, no sudden memory spikes, or temperature raising out of the ordinary, nothing that would indicate such an fps drop or stuttering.

MSI Afterburner

I also did the reset option on Windows10, completly cleaned out all my personal info from the windows partition.
So at this point, I am not sure if it is a software issue or a hardware issue.
Any suggestions are greatly appreciated.

Edit: I kept doing some tests to find out the issue. And this happened before and I was able to replicate it. Same thing happened as before, till I set it up to fullscreen, Alt+Tab from the game and then back to the game, FPS went up to 50 again, stable and good, dropped after a couple of seconds. After a bit it went to 2-5 fps, and I had to shutdown the game, because even the sound was getting messed up.

MSI Afterburner 2

In this image those ups and downs in the GPU usage are when the fps dropped really hard and the sound got messed up.

 

Windows 10 massive fps drop

Hello, i seem to have a massive fps drop in any game i play, 1/3 to even 1/2 fps drops depending on the game, I've tried reinstalling windows twice, checking drivers constantly and i can't seem to fix it. it's not a hardware issue, i believe it to
be a software issue, started to happen about the last week of September, so about 2 months now, also sometimes when i restarted pc my fps would be fixed on startup, but the next restart it would drop massively by 1/3 to even 1/2 of my usually amount.
I also tried bumping my performance of my ram per paging file in the advanced system properties, because i also noticed my memory % jumped quite a bit.

System Specs:

Windows 10 os 64-bit

8 GB of Ram (7.85 usable)

i5-4690k Cpu @ 3.50 GHz

AMD Radeon HD 7700 series

Thank you

 

Gaming FPS Drop/Stutter after recent Windows 10 update.

This is a well documented problem that microsoft is trying to ignore. I have this stuttering and low fps problem on every single one of my windows 10 machines, and many of my friends. I have had this problem on and off for the last two years. See this nvidia
forum with over 200 pages of people with the same problem.

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