Preview Update (KB5089573) (26200.8524) tanks performance

Question

Preview Update (KB5089573) (26200.8524) tanks performance

Windoors 20

With the latest windows update from 5.26.26 I've seen significant frame rate instability when trying to play games. I've tested this on Cyberpunk 2077 and Black Ops 6 and I get anywhere from 5-10 frames less on average and the general stability has plummeted.

One thing I noticed is that latencymon shows the current measured interrupt latency constantly fluctuating from 0 to the upper hundreds regardless of whether the system was busy or not where on previous windows versions it was stable in the single digits when not under load.

There has been an Nvidia Geforce driver update as well on the same day but having reverted to the previous 596.49 driver has not helped this issue.

I tried reverting to a system restore point a couple of days before this update but while the issue was resolved I couldn't connect online no matter what troubleshooting measures I took.

Sai Prabhav Vankamamidi 0 Reputation points

2026-06-01T04:35:05.79+00:00

Have you tried the 610.47 Studio Driver? Those are always more stable than the Game Ready ones.

Answer accepted by question author

Hendrix-V 19,470 Microsoft External Staff Moderator

Hi Windoors,

Thank you for sharing your detailed testing, especially the LatencyMon results and driver rollback checks. That helps narrow this down significantly.

At this point, you can consider trying these recommended workarounds:

1, Revert the preview update - if the issue started right after installing KB5089573:

Go to Settings > Windows Update > Update history > Uninstall updates
Remove KB5089573
Restart the device

2, Prevent it from reinstalling to stay on a stable build:

Go to Settings > Windows Update > Advanced options
Turn OFF “Get the latest updates as soon as they’re available”
Optionally pause updates temporarily

3, Short-term stability adjustments if rollback isn’t feasible:

Reset power plans with this command line: powercfg -restoredefaultschemes (run in Command Prompt with Admin privilege)
Toggle Game Mode OFF > restart > ON
Test without background overlays (e.g., Game Bar / GPU overlay)

Preview updates are continuously refined, and improvements are typically included in the following cumulative update. Staying on a stable build or waiting for the next update is often the most reliable approach if you encounter regressions like this.

Let me know if you need any further help. Feel free to ask by clicking "Add Comment" or "Add Reply" if you are unable to add a comment, so that your reply is visible. I appreciate your effort.

Note: Follow the instructions in our documentation to enable email notifications if you wish to receive notifications about this conversation.

Windoors 20 Reputation points

2026-05-29T18:28:53.41+00:00

Hey, I did a clean windows install and was still experiencing this issue. However, I disabled a bunch of services including SysMain , a lot of the Remote ones including Registry/Desktop ones and WSAIfabricSvc then I tried your suggestion and it seemed to fix the issue. I haven't benchmarked games yet but latencymon doesn't show huge interrupt spikes anymore.
Hendrix-V 19,470 Reputation points Microsoft External Staff Moderator

2026-05-29T23:56:05.1333333+00:00

Hi Windoors,

I'm relieved to know that you made a great decision and everything is good to go on your side. I hope the insights shared in the forum help address your concerns effectively. And thank you for accepting my answer since accepting it helps others with similar concerns can find useful information.

If you have any updates or further questions, please feel free to share them with us.

1 additional answer

Your answer

Sai Prabhav Vankamamidi 0 Reputation points

2026-06-01T04:35:05.79+00:00

Have you tried the 610.47 Studio Driver? Those are always more stable than the Game Ready ones.
Windoors 20 Reputation points

2026-05-29T18:28:53.41+00:00

Hey, I did a clean windows install and was still experiencing this issue. However, I disabled a bunch of services including SysMain , a lot of the Remote ones including Registry/Desktop ones and WSAIfabricSvc then I tried your suggestion and it seemed to fix the issue. I haven't benchmarked games yet but latencymon doesn't show huge interrupt spikes anymore.
Hendrix-V 19,470 Reputation points Microsoft External Staff Moderator

2026-05-29T23:56:05.1333333+00:00

Hi Windoors,

I'm relieved to know that you made a great decision and everything is good to go on your side. I hope the insights shared in the forum help address your concerns effectively. And thank you for accepting my answer since accepting it helps others with similar concerns can find useful information.

If you have any updates or further questions, please feel free to share them with us.

Answer 1

The behavior matches known cases where specific Windows updates negatively affected gaming performance and latency, and were later corrected by follow‑up updates.

From the available information, the most relevant guidance is:

Similar gaming performance regressions have occurred before
- Previous Windows 10 updates (KB5000842, KB5001330, KB5003173) caused:
  - “lower than expected performance in games”
  - especially “running games full screen or borderless windowed modes and using two or more monitors.”
- These issues were later fixed in a subsequent cumulative update (KB5003690).
- This pattern indicates that a specific OS build can introduce gaming performance and latency regressions that are not resolved by GPU driver rollbacks alone.
Game Mode / power plan issues can also reduce FPS and stability
- Another update (KB5004293 / KB5004296) fixed an issue that:
  - “prevents power plans and Game Mode from working as expected. This results in lower frame rates and reduced performance while gaming.”
- If the current preview build has a similar regression, FPS drops and unstable frame times are expected even with correct GPU drivers.
Practical mitigation steps based on prior cases Given the behavior and prior fixes, the most effective options are:
1. Move off the problematic preview build
- When a preview/insider build causes performance regressions, the recommended pattern in similar cases is:
  - Pause updates and wait for the next build that contains a fix (as was done previously with KB5003690 and later preview builds).
  - Alternatively, perform a clean install or revert to a stable non‑preview build that predates the regression, then stay off preview updates until a fix is documented.
1. Verify Game Mode and power plan behavior
- Because earlier issues directly affected Game Mode and power plans, ensure on the current build that:
  - The active power plan is set to a high‑performance or balanced profile known to work on previous builds.
  - Game Mode is toggled off/on and tested both ways, as some builds have broken its optimizations.
1. Avoid relying solely on GPU driver rollbacks
- Prior incidents show that the root cause was in the OS update, not the GPU driver. Rolling back NVIDIA drivers alone did not resolve those cases; only a Windows update with a fix did.
About the restore‑point scenario and loss of connectivity
- In similar Insider/preview scenarios, when an update fails or is rolled back, the recommended options have been:
  - Pause updates and wait for a newer build rather than repeatedly reinstalling the problematic one.
  - If the system becomes unstable (e.g., networking broken after restore), back up data and perform a clean install of a known‑good build instead of staying on a partially rolled‑back preview state.

Given the pattern in previous updates, the most reliable path to restore gaming performance and stable latency is to move off the current preview build (KB5089573 / 26200.8524) to either:

A newer preview build that explicitly documents a gaming/performance fix, or
A stable non‑preview build that predates the regression, with updates paused until a fix is announced.

References: