Windows 10: 1709 -> 1909 - update fails - no matter what I do.

Hi guys.

This is my first question ever related to windows - over the many years I was able to do the research and solve the problem on my own - but this time it is a dead end.

I had windows 7 that I upgraded to windows 10 pro x64.
It was updating itself to a certain point, around the end of year 2018 the major update was unable to install - got an error in the updater - so I postponed it.

I got back to it a couple of days ago and was on version 1703 - couldn't update further due to update error.

After fiddling with it, resetting updater etc (nothing worked) I unpaused or just turned off the postpone of the update.

This somehow unclogged it and updates got installed (mainly security updates for office package).

Now I am on version 1709 build 16299.1087 and cannot install any updates due to an error.

The story is always the same: "Feature update to Windows 10, version 1903 - Error 0x800700c1"

What I did so far (everything failed)

1. Resetting udpater via script (clearing download folder etc)
2. sfc /scannnow - three time with reboots - it finds some hash mismatches in some files
3. tried DISM - didn't worked - get an error 87
4. Repaired boot manager (something like that) with:
5. bootrec /RebuildBcd - couldn't find a file so nothing was done
6. bootrec /fixMbr - fixed
7. bootrec /fixboot - couldn't find something or so - nothing was done
8. Used media creation tool and tried upgrade from there - it got to an 88% (it always does) and update failed.
9. Downloaded windows upgrade - same as above - 88% and failed
10. Finally - I created iso image with media creation tool - and tried install/upgrade windows from there - same as above - 88% and failed.
11. Scanned system with malwarebytes, adaware, superbug etc - nothing found except of some old ad tracking cookies

Somewhere in between I was trying to do it manually via update catalog but what I found was that any update that is newer than April 2019 is not applicable for my system - so I gave up on this.

So basically nothing works (except of formatting the drive and clean install but that is the last resort and nod very welcome )

Installing from windows update always goes the same way - it installs to 35% - then it stalls for like 20 min - then proceeds and fails at 88% with error:

"Feature update to Windows 10, version 1903 - Error 0x800700c1"

Windows tried to update itself today to version 1909 - and it failed with the same error at 88%:

"Feature update to Windows 10, version 1909 - Error 0x800700c1"

I posted this question on answers.microsoft.com - some guy helped a little and it apperas that Im lacking service stack - problem is that I don't know which KB - we deducted it from the setup diag log.

I would greatly appreciate any help in this matter.

Thanks and best regards to everyone,

Mac.

:)

 

Windows 10 1909 Causes Secondary Hard Drive to not be Recognized

Installing the Windows 10 1909 Update causes my secondary hard drive to not be recognized.

Steps to confirm issue:

• Secondary drive not visible in Windows Explorer
• Secondary drive not visible in device manager
• Secondary device not visible in disk manager

Steps to replicate issue:

• Installing 1909 update

Steps to resolve issue:

• Uninstall 1909 update

Since updates can only be delayed for so long, an actual fix would be appreciated.

 

Windows 10 fails to update


When you finish testing the Avast suggestion, make sure that you restart your machine.

Then if the issue persists, please return to the trouble shooting list in post# 89

I think there are three steps that remain; the WU troubleshooter, reset WU components, and manual WU reset.

 

Update 1709 continually fails

My machine continually attempts to install 1709. It has failed (at least) 15 times in exactly the same place on the update process.

At 54% it tries to restart the machine and never comes back. I have left it alone for many hours (overnight in one case) to no avail. When I power down the machine to get something working, it proceeds to 82% and then hangs again.

ASUS does not have my computer on the list of machines certified for 1709 so no surprise it fails - shouldn't windows update be smart enough to check vendor lists before applying a fix?

I have done all the fix steps that have been logged in other threads (clean boot; disable all USB connections; update all drivers; run SC and DISM) including the ISO solution.

I am beginning to think that the only prudent upgrade step left to me right now either involves Linux or Mac OSX.

How can I stop windows update from doing it over and over again. This is extremely frustrating and borders on Einstein's definition of insanity.