【Unsolved】System becomes extremely laggy after waking from sleep (S0) on Windows 11 26H2, after fixing problems using ISO

ovo 0 Reputation points
2026-10-26T00:02:15.0466667+00:00

My system used to be 25H2. I used ISO of 26H2 to fix some problems. I kept my settings and data.
After that each time my laptop wake up from sleep (S0 mode) system becomes laggy until I open Intel® Graphics Software and click on it or press win+ctrl+shift+B【edit: now it's found that sleep doesn't matter. Closing the screen alone is enough to bring laggy】
here's some of my system info
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Windows for home | Windows 11 | Performance and system failures

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  1. Sumit 44,966 Reputation points Volunteer Moderator
    2026-10-27T15:14:57.1+00:00

    Thank you. Let me suggest something based on recent findings.

    1. Open Chrome, go to Settings > System and performance (or System).
    2. Turn off Use graphics acceleration when available (formerly Use hardware acceleration when available).
    3. Relaunch Chrome and test putting the laptop into sleep (S0) mode, waking it, and opening Chrome again to see if the lag returns.

    #2:

    • Open the Intel Graphics Command Center or Intel Graphics Software.
    • Navigate to Power and disable Display Power Savings or Panel Self-Refresh (PSR), as these features frequently cause pipeline stalls when hardware-accelerated surfaces (like Chrome's GPU process or WebView2) attempt to re-initialize post-resume.

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