Windows 10 will not update anymore; stuck in 1909

Anonymous
2021-05-17T01:54:45+00:00

TLDR: Update page shows "Your device is missing important security and quality fixes." for the last one week. It is still in Version 1909 Build 18363.1556.

Long story: It has been promising Feature update 2004 for quite a long time but did not really deliver. However, I had been getting regular security and quality minor updates. Around a month ago, when I started getting the end of service notifications for 1909 I tried to force updates by hitting "Check for updates" and it tried doing a huge download for 20H2. I think after a long installation process it aborted around 45% and rolled back. Tried a couple of times and the same result.

Now, I did a few methods suggested in various forums and Microsoft support sites like running update troubleshooter, a scan, running commands as administrator, setting right a few registry entries etc. I even rolled the last cumulative update for 1909 KB5003169 and it got reinstalled on the next reboot but the "Your device is missing important security and quality fixes." returned.

I am worried because I will be missing out important security updates given that 1909 has reached the end of service.

UPDATE: The error code against the update 20H2 update is given as 0xC1900101

Windows for home | Windows 10 | Windows update

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  1. Sumit 44,436 Reputation points Volunteer Moderator
    2021-05-29T05:09:36+00:00

    >>1. Can I not get these issues resolved by using the Reset method within Windows Settings?

    You can try Reset for sure, but chances are it may fail too. Also, a clean install gives minimal problems in the future compared to a reset hence suggested.

    >>2. Do I need to do a clean install removing all files? Wouldn't reinstall with retaining files but not applications work?

    You can move the files to a different drive and do a clean install. It is always recommended to format OS drive for maximum benefits.

    I have another thing to suggest to you - a fresh start, which is available for 1909. This should keep the files and reinstall Windows from the cloud. If that doesn't work, do a clean install.

    Give your PC a Fresh Start (microsoft.com)

    https://answers.microsoft.com/en-us/windows/forum/windows_10-windows_install/clean-install-windows-10/1c426bdf-79b1-4d42-be93-17378d93e587

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  2. Anonymous
    2021-05-29T04:45:45+00:00

    A few questions before I try this destructive method.

    1. Can I not get these issues resolved by using the Reset method within Windows Settings?
    2. Do I need to do a clean install removing all files? Wouldn't reinstall with retaining files but not applications work?
    3. If no to above questions, can I do it on the same PC by downloading locally instead of USB?

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  3. Anonymous
    2021-05-28T02:06:47+00:00

    For sure!

    When you say this PC corrupts the USB drive, does the USB drive turn write-protected as well?

    No. It has been quite sometime but basically it fails to recognize it anymore. It wouldn't format it as well. However, I can reformat in another device and restore the USB.

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  4. Sumit 44,436 Reputation points Volunteer Moderator
    2021-05-27T15:30:22+00:00

    For sure!

    When you say this PC corrupts the USB drive, does the USB drive turn write-protected as well?

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  5. Anonymous
    2021-05-27T15:26:20+00:00

    Can I do this USB in a different computer running windows 10? One of things I have noticed before is that this computer corrupts any USB I try to format or when I try ti create a boot able drive.

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