Windows Update error (Your device is missing important security and quality fixes)

Cant update- Cumulative update preview for windows 10 version 20H2 for x64 - based systems (KB5004296) Any solution?

j_z_y

Copper Contributor

Jul 18, 2022

I had this problem for a long time and tried many different methods. The problem is that Windows Update, when it fails, does not provide enough error information. I found out that if one uses the online Windows Update (https://www.microsoft.com/en-us/software-download/windows10, then choose Update now), it may give you additional information about why the update failed. In my case, it said "You can't install Windows on a USB flash Drive using setup". A little search revealed that it was caused by HKEY_LOCAL_MACHINE\System\CurrentControlSet\Control\PortableOperatingSystem was set to 1. After changing it to 0, I went through the online update successfully. Hope this helps.

janowskiPRF

Copper Contributor

Jun 16, 2023

j_z_y

Your solution same my life 🙂

I had Windows 10 installed recently from the BOX package over old Windows 7 with OEM license. Everything got OK, but realized, this was quite old production and old Win10 release. I used your link and ... it let my Windows installation to get the latest update (last quality and features update meant for Windows 10. Then I got additionally 2 cumulative updates and that's was. Now I'm told to be up to date and will get in the future only security updates 🙂 I lost some licenses for apps in the process but it was not a problem to reactivate them. In the future I will may be able to install Win11. If Microsoft accepts my i7-6700 processor and I install the TPM 2.0 module on my mobo, which is the simpliest thing from all 🙂 For sure I will not buy a new PC, because my current one is running like a hell (even being 5 years old but upgraded with SSD and new graphic card).

Thanks a lot for your hint. It was a real hit 🙂

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Windows Update error (Your device is missing important security and quality fixes)

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