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Windows Update: We couldn't connect to the update service. We'll try again later, or you can check now. If it still doesn't work, make sure you're connected to the Internet.

Anonymous
2023-01-30T05:06:19+00:00

Windows Update encountered the issue:

And when I checked the log, I found the following error, as the screenshot shows: 

Complete the request URL HTTPS://slscr.update.microsoft.com/SLS/{2B81F1BF-356C-4FA1-90F1-7581A62C6764}/x64/10.0.22623.1245/0?CH=284&L=zh-CN;en-US&P=RingExternal;WUMUDCat&PT=0x30&WUA=1022.1108.2012.0&MK=LENOVO&MD=82TF with [80072F8F] and http status code[0] and send SLS events.
2023-01-30 12:53:46.1497703 5260  16004 SLS             *FAILED* [80072F8F] GetDownloadedOnWeakSSLCert
2023-01-30 12:53:46.1498807 5260  16004 SLS             *FAILED* [80072F8F] Method failed [CSLSClient::GetResponse:624]

And when I visited the URL Windows Update requested, I got the following error, which stated that the certificate is not trustworthy: 

NET::ERR_CERTIFICATE_TRANSPARENCY_REQUIRED

And someone had the same issue here: Windows Update fail 0x80072EFE - Microsoft Q&A

I followed his instructions to enable the required ECC curve, but the error persisted, and I checked the log, still showed up the same error "GetDownloadedOnWeakSSLCert".

So how should I solve this certificate error? And, Microsoft Store couldn't download anything, and I think it was the certificate issue too.

Windows for home | Windows 11 | Windows update

Locked Question. This question was migrated from the Microsoft Support Community. You can vote on whether it's helpful, but you can't add comments or replies or follow the question.

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  1. Ramesh 176.1K Reputation points Volunteer Moderator
    2023-01-30T08:47:17+00:00

    Also:

    From: https://answers.microsoft.com/en-us/windows/forum/all/windows-update-will-not-work-after-windows-10-2004/606bb0f3-9fc5-485a-9b4e-b00242909d5b?page=3

    SECjet

    Replied on October 19, 2020Report abuse

    SUCCESS!

    From a known working computer I exported the HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\SystemCertificates tree. Then imported the whole thing onto a broken computer. Windows update immediately began working again. I have tested this on multiple computers and it fixes the problem every time. So it's 100% a corrupt, missing, and/or wrong certificate problem that's preventing windows update from connecting.

    Now, getting Office to work again has a few steps involved. I'm still nailing down the exact process but it involves applying the registry keys, uninstalling Office (we use Office Standard 2016), running an in-place upgrade/reinstall, applying any additional updates after that's completed, reboot as needed and then reinstall Office. Further Office updates download and install no problem. 15 people found this reply helpful

    40+ people found this answer helpful.
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Answer accepted by question author

  1. Ramesh 176.1K Reputation points Volunteer Moderator
    2023-01-30T09:16:03+00:00

    Here you go → systemcertificates.reg (zipped)

    Before applying, please do the following:

    1. Backup the registry hives using the RegBak tool.
    2. Create a system restore point.

    If that doesn't do the trick, run a repair install.

    • Download the Windows 11 ISO
    • Double-click the ISO to mount it to a drive letter.
    • Run Setup.exe and complete the repair process.

    Your apps, settings, and data will be retained during the repair installation.

    3 people found this answer helpful.
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14 additional answers

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  1. Anonymous
    2023-03-02T22:39:15+00:00

    Do you have the registry keys for Windows 10? The link here is no longer working.

    6 people found this answer helpful.
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  2. Anonymous
    2023-01-30T09:40:43+00:00

    After I replace the registry key with yours's, Windows Update and Microsoft Store works again. Thank you so much!

    1 person found this answer helpful.
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  3. Anonymous
    2023-01-30T08:49:21+00:00

    Tried, but still got "GetDownloadedOnWeakSSLCert".

    Seems that there are some issues with the SSL of Microsoft's servers, and when I tried to visit https://slscr.update.microsoft.com with Android and iOS devices, they both reported this certificate error:

    NET::ERR_CERT_AUTHORITY_INVALID

    No idea if other people have the same issue as I have.

    1 person found this answer helpful.
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