Windows 10: Windows UI FPS drops after opening Start Menu for a couple of seconds after 2004 update

Updated to 2004 yesterday. Immediately noticed the following behavior:

• After I click on Start Menu animation of the menu appearing looks like 20-30 FPS
• If I move my mouse around during/after Start Menu animation it definitely looks like low FPS as mouse movement is much less smoother than usual
• It fixes itself after 2-3 seconds
• The more times I repeat this the less often it happens, until I switch to some other application, do something else for a while and then try again -- then it again happens more often

Hardware is Xeon E3-1231 v3, 1080Ti, 16GB RAM, 144Hz monitor with G-Sync.

What I tried so far:

• DDU Nvidia drivers and installed the latest one (no difference)
• Reset Nvidia settings (no difference)
• Disable G-Sync (helps a bit)

Disabling G-Sync actually helps a bit, Start Menu animation still triggers low FPS but it doesn't persist for 2-3 seconds after the animation. But the animation itself still has noticeably lower FPS.

I found this thread: https://www.reddit.com/r/windowsins...indows_10_2004_rtm_start_menu_opening_with_a/ but OP claims updating to the release version of 2004 fixed it, while for me it actually started right after the update.

Anyone else has the the same issue?

submitted by /u/iXeron
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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 Start Menu won't open.

Hi Dougie,

Corrupted system files could be one of the reason why Start Menu is not opening.

As an initial troubleshooting, we suggest following the steps listed in this article:
Troubleshoot problems with the Start menu or Cortana
see if it helps resolve the issue.

Update us with the outcome so we can provide further assistance.

 

FPS Drop/Stutter After Most Recent Windows Update

Thank you for updating us. If device drivers is already updated and issue still persist, it's best that you roll back a device driver. Follow the steps below to roll back a device driver.

• Type Device Manager in the search bar of Start menu and open it.
• Locate and right-click the device that has the problem driver installed, and then select
  Properties.
• Select the Driver tab, and then select
  Roll Back Driver.

If issue still persist, we suggest that you reinstall the graphics devicedriver. Follow the steps below:

• Type Device Manager in the search bar of Start menu and open it.
• Locate and right-click the device that has the problem driver installed, and then select
  Properties.
• Select the Driver tab, and then select
  Uninstall Device.
  
• Restart your computer and Windows will attempt to reinstall the driver.

Let us know if you need further assistance.