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
    2021-05-26T02:57:20+00:00

    Hi Curious_userCA,

    I looked at the logs and my conclusions are the same as Paul - setup is hitting a write protected error when trying to install drivers. The error is pretty generic and the logs do not provide much details, unfortunately. A write-protected error means setup was unable to replace the existing drivers with the newer versions.

    I am working on the exact same issue with someone else, but no success yet. In that case, a clean install of windows may be required.

    Nevertheless, what is the result of CHKDSK?

    How to do a Disk check of System drive in Windows 10 and interpret the logs https://www.yourwindowsguide.com/2018/04/how-to-do-a-disk-check-of-system-drive-in-windows-10-and-interpret-the-logs.html

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  2. Sumit 44,436 Reputation points Volunteer Moderator
    2021-05-26T02:57:42+00:00

    Also, is Bitlocker enabled on your drive?

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  3. Anonymous
    2021-05-26T03:12:45+00:00

    Hi Sumit, 

    No, BitLocker is not available on my model. I am running Windows Home.

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  4. Sumit 44,436 Reputation points Volunteer Moderator
    2021-05-26T04:46:20+00:00

    Thanks. How about Device encryption in Settings>Update and Security>Device encryption?

    (That is present in W10 Home as well)

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  5. Anonymous
    2021-05-26T14:02:54+00:00

    I don't see a device encryption in my settings menu. Searching for it does not give any results as well!

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