General Random Write disk speed degradation in Windows 11.

Anonymous
2021-08-23T04:42:53+00:00

After updating several machines from Windows 10 to Windows 11 users have noticed a significant degradation on Disk Random Write speed. This is quite noticeable with NVMe SSDs benchmarks, it also seems to affect SATA SSDs even if it is not as significant. See 3 samples below with 3 different devices on Windows 10 and Windows 11:

Windows 10 19043.1165 NVMe SSD SK Hynix:

Windows 11 22000.160 NVMe SSD SK Hynix:

Windows 10 19043.1165 SATA SSD ADATA SU800:

Windows 11 22000.160 SATA SSD ADATA SU800:

Windows 10 19043.1165 Samsung NVMe SSD MZVLW:

Windows 11 22000.160 Samsung NVMe SSD MZVLW:

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  1. Anonymous
    2021-12-09T17:31:19+00:00

    I have the same problem. Absurdly slow :(

    ASUS VivoBook S

    CPU: Intel(R) Core(TM) i7-8550U CPU @ 1.80GHz 1.99 GHz

    RAM: 16,0 GB (15,9 GB utilizável)

    Windows 11 Pro 21H2

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  2. Anonymous
    2021-12-08T03:39:00+00:00

    So sorry I got windows 11. My laptop is sooo slow now

    What brand of laptop and what configuration?

    Thank the inefficient new generation of programmers. 😁

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  3. Anonymous
    2021-12-08T02:56:29+00:00

    So sorry I got windows 11. My laptop is sooo slow now

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  4. Anonymous
    2021-12-04T18:43:26+00:00

    So I wonder if it makes sense to break up by 2 TB SSD Disk into a windows partition and then a separate data partition (right now I just have one big undivided disk)? But then I'll have to rebuild everything. Nah -- too much work. Hopefully MS will fix this.

    Also, I wonder if most review sites test these drives where windows is not installed on it? Which bumps up the numbers.

    Another thing is -- is this purely a Windows 11 issue. In other words, if Windows 10 was the SSD drive, was performance degraded? Or only in Windows 11?

    @eapLM,

    Yes, the problem is just with windows 11.

    Same exact configuration and same machine with windows 10 and windows 11, Windows 10 does not show this problem.

    You can see in my previous posts the different results for Windows 10 versus Windows 11.

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  5. Anonymous
    2021-12-04T15:13:54+00:00

    For me, and I have seen others on Reddit, this issue is not present on Windows 10 and people started noticing this issue after upgrading or installing Windows 11.

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