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Windows Update error code: 646 (1 Viewer)


New member
Local time
Today, 15:41
Apr 27, 2020
I'm unable to run windows update and keep getting an error. I keep getting "Windows encountered an unknown error" error 646.
any suggestions as to what to do?
I am also getting the same error Code 646 when installing the updates.

Last edited:

Uncle Gizmo

Nifty Access Guy
Staff member
Local time
Today, 10:41
Jul 9, 2003
I'm unable to run windows update
I note you have yet to receive a reply, hence I am bumping your enquiry up the list so that it gets seen again. Hopefully you will get the useful response..

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