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.net4.8: 0x800f0922; Firefox: 0xc0000022

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George:
Hi,

I've tried to install .net4.8 but failed with error 0x800f0922

Also, recently Firefox wouldn't start with error 0xc0000022

Are these related, how to fix it?

I run Windows 8.1 64 bit; other programs, including browsers, work fine.

Thanks a lot.

Boggin:
It could be related but have a look through this article on how to troubleshoot Firefox.

https://support.mozilla.org/en-US/kb/firefox-wont-start-find-solutions?redirectlocale=en-US&redirectslug=Firefox+will+not+start

My first thought though would be to uninstall it and download afresh.

As for the Windows Update failure, this article has some suggestions for that error code.

https://windowsreport.com/windows-update-error-0x800f0922/

George:
Thanks, I've tried some of the suggestions in these articles, gonna try the rest.

Boggin:
There are a couple of cmds that can resolve update problems in Win 10 which may also apply to Win 8.1

These are run from a Command Prompt (Admin) and are -

dism /online /cleanup-image /startcomponentcleanup

dism /online /cleanup-image /restorehealth

and then enter sfc /scannow to see if any corruption remains.

These each will take a while to run.

George:
Yes, I've tried these.
sfc /scannow said it had found some corrupted files but couldn't fix all of them.
dism /online /cleanup-image /restorehealth said that the source wasn't available.

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