Sorry, I should've removed the message about Update Assistant, it won't solve your problem. Please test the alternate solution and let me know what you got.
My Windows 10 Version 20H2 will not install the update 0x80004005.
Have tried 3 times. Message on update page says it did not install and I may try again. This is not a new install. Have been using for couple of years.
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.
141 answers
Sort by: Newest
-
Anonymous
2020-11-06T20:02:18+00:00 Update assistant gives error msg. 0xa000400.
-
Caio G 11,930 Reputation points Independent Advisor
2020-11-06T19:56:48+00:00 Try this alternate solution:
> Press
Windows key + R> Type
services.msc> Locate
Windows update, right-click it and selectStop> Close the window
> Go to
C:\Windowsfolder using file explorer> Locate
SoftwareDistributionand delete it> Reboot your PC
> Try downloading the update again
-
Anonymous
2020-11-06T19:52:37+00:00 Troubleshoot could not recognize the problem.
-
Caio G 11,930 Reputation points Independent Advisor
2020-11-06T19:17:03+00:00 Sorry, I understood you were trying to install Windows 20H2 update.
Try running Windows Update troubleshooter:
> Press
Windows key +ion your keyboard> Select
Update & security> Select
Troubleshoot> Click on
Additional troubleshooters> Click on
Windows Update> Select
Run the troubleshooter