I was frustrated for days regarding kb4566782 and 0x800f081f or continuous update loop. So, I said why not try the MediaCreationTool2004.exe https://www.microsoft.com/en-gb/software-download/windows10 as was suggested elsewhere. I was initially cautious but took a chance. It worked without any issues. It did not prompt me for an iso or media, it just ran. I chose to keep my files of course and it ran for about 20-30 minutes. When completed it showed "You're up to date" under Windows Update. I checked for installed updates, and instead of having today's date (08/22/2020) for kb4566782 it showed it as installed on 8/8/2020, which is odd but I'm okay with. Perhaps recovery/reset pc option would do the same and keep files as well. I wouldn't really consider this a Windows reinstall for the amount of time it took and what it achieved. I consider it putting back the files that were causing the update to fail in the first place. I'm satisfied and would do it again if I ran into this same or similar issue with windows update and/or loop.
KB4566782 Update Loop
My laptop is running Windows 10 2004 OS build 19041.388 and windows update decides to automatically install cumulative update KB4566782 (build 19041.450). The installation will fail (0x800f081f) during updating Windows and Windows update automatically retry to install it until my laptop's battery dies.
How get out of this update loop?
update: We need a true solution, and please do not mark reinstalling windows 10 as an answer, dear moderators.
Windows for home | Windows 10 | 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.
154 answers
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Anonymous
2020-08-23T00:50:15+00:00 -
Anonymous
2020-08-23T01:56:48+00:00 Frogdaddy
I agree with your comments as I performed the same action (used the Media Creation Tool2004.exe) and it it also worked fine for me (see my previous Microsoft Community reply).
Danilo35
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Anonymous
2020-08-23T02:07:32+00:00 All well and good but no one, including yourselves, should have to go through this regarding a messy Update. Totally ludicrous!
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Anonymous
2020-08-23T02:42:52+00:00 Same method worked well for me too with no need to deactivate antivirus software or firewall or other software/settings. I agree these workarounds shouldn't be necessary in the first place as Microsoft shouldn't make buggy update files available for download. However, pretty much all vendors are guilty of this from time to time and it is important that shared resources (such as this site) are able to guide us to a temporary 'solution' whenever this occurs.
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Anonymous
2020-08-24T15:05:54+00:00 I concur! I never have these problems with updates from Apple. I should not have to reinstall OS just because MS can't get their act together. Furthermore, when I did the manual install, it did the same - got to 100% and the backed itself out and then said, "...Not installed". That is not useful. Microsoft knows why a program can't install and tell you why. Whenever I look up the error code numbers, all they tell you is general information which never solves the problem.
I'm a retired programmer myself, and I'm greatly disappointed in MS lack of ability to programmatically inform you why something didn't install.
I've tried everything before finding this thread, (other than complete Windows 10 install) and nothing works.