Boris wrote:
My 64-bit Windows 10 machine keeps downloading

2017-11 Cumulative Update for Windows 10 Version 1709 for ARM64-based Systems
(KB4051963)

and the install continuously fails with error 0x80070020.

Shouldn't it be downloading

2017-11 Cumulative Update for Windows 10 Version 1709 for x64-based Systems
(KB4051963) ?

As Paul noted, if the Win10 device is downloading the ARM64 version then
it would be a Windows Update issue or a MSFT issue pushing the wrong
file down to your device via Windows Update.


You asked "Shouldn't it be downloading
2017-11 Cumulative Update for Windows 10 Version 1709 for x64-based
Systems (KB4051963) ?"

Windows Update for a Windows 10 64 bit(x64) operating system should be
downloading
2017-11 Cumulative Update for Windows 10 Version 1709 for amd64-based
Systems(KB4051963) ?

i.e. Windows Update nomenclature uses the term amd64-based not x64-based

Note: amd64 should not be interpreted as meaning an Advance Micro
Devices(AMD) 64 bit chip. Amd64 is equivalent in naming to the following:
x86-64, x86_64, x64 all of which are the 64 bit extension of the x86
instruction set.


Microsoft recently made a subtle change(yet equivalent as noted above)
to the naming of 64-bit o/s updates pushed down via Windows Update by
branding the update as amd64 instead of x64.
- this recent naming change has confused a few folks who were thinking
it was an update for AMD chipsets; likewise a few also reported it as
the ARM64 update when comparing the files for the same KB in the
Microsoft Update Catalog.
- at this time it is unknown if MSFT will switch back to calling the
Windows Update deployed 64 bit patches as x64 instead of amd64. They are
at least aware of the confusion they created by having different
nomenclatures for the same file in Windows Update vs. the Microsoft
Update Catalog.

Glad to hear you finally got KB4051963 installed via download and
install using the Microsoft Update Catalog.


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msft mvp 2007-2016, insider mvp 2016-2018