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. Anonymous
    2021-07-23T12:04:15+00:00

    I'm wondering if you have had any further success. I'm having virtually the same set of issues you have. I have used the MediaCreationTool, I've done the Windows 10 Updater, renamed those directories and stopped/started services. I've done the full restore of Windows back to the factory settings - basically everything all the forums keep repeating, but I still get stuck with "your device is missing important security and quality fixes." I have had the 0xC1900101-0x20017 error as well.

    A complete factory reset took me back to a much earlier version of WIndows 10, and it went through a series of updates. I'm now on Version 10.0.18363 Build 18363, with a Hardware Abstraction Layer Version = "10.0.18362.1533". I can't get past that.

    Hopefully, there's someone out there that has figured this problem out.

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  2. Anonymous
    2021-06-06T02:33:11+00:00

    In the meantime I tried to upgrade with a USB stick with the latest edition downloaded as per the earlier suggestion.

    It repeats the original error except I am stuck with an even older version. I guess the only option is to format the drive and install.

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  3. Sumit 44,436 Reputation points Volunteer Moderator
    2021-06-06T02:10:52+00:00

    Oh No. I just noticed that it reset me back to Windows 10 1607 version!

    Really? I believe it restored the Factory partition.

    How about trying again now to update, which should work as it is a sort of reinstall.

    https://aka.ms/Windows10

    Click Download Tool now and select Upgrade this PC

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