KB890830 update Windows Malicious Software Removal Tool 5.77 - Nov. 12

maxseven · 12 Nov 2019

When I ran Windows Update today and this was shown, I dutifully selected it and it Failed "Code 800B0109 Windows Update encountered an unknown error." and no amount of retrying got it to download and run. Then I found a link at MS that just gave me Error 404 ie no such page found (maybe a Firefox thing).

Anyway I came here and found your post Brink and it seems your manual DL link is working. Hopefully my next run of WU will show "no new updates found". If not I'll edit this post... Thanks.

Melchior · 12 Nov 2019

@maxseven, I am having this issue too... it keeps failing to install...
I will try the manual download link above too and report back..

EDIT:

even though it didn't appear to install... I just did a quick scan and exited without doing anything else as far as I can tell... says it found one thing but didn't tell me what file it was it found... ooh well.. probably a false positive... since I keep my system tight and clean...

thought the windows update entry did seem to disappear.. for this app..

AK6DN · 12 Nov 2019

I'm also seeing the same error on installing "KB890830 update Windows Malicious Software Removal Tool 5.77 - Nov 12.
Fails (repeatedly) with error code 800B0109. Ref:

spywriter007 · 12 Nov 2019

Hey All,

I am getting that same error too. Have any of you found any work arounds?

Cricket

AK6DN · 12 Nov 2019

Ok ... manual download of the link in the first post, and run the .exe manually ran OK for me.
Took about 5min to scan, no issues found.

rossh · 13 Nov 2019

From the "C:\Windows\WindowsUpdate.log" file:

Towards the bottom...... file signature error - an MS problem. I have 3 different systems all with the same error.

Code:

2019-11-12    18:40:32:995     516    203c    DnldMgr    BITS job {4421C4FA-4F13-4EC6-8004-AA5132D94D44} completed successfully
2019-11-12    18:40:33:117     516    203c    Misc    Validating signature for C:\Windows\SoftwareDistribution\Download\37e0e39dddd9043a22757af09c05215c\acd7b02e03c86f374a14271a7b0844a3e4ad64dc with dwProvFlags 0x00000080:
2019-11-12    18:40:33:158     516    203c    Misc     Microsoft signed: No
2019-11-12    18:40:33:158     516    203c    Misc    WARNING: Digital Signatures on file C:\Windows\SoftwareDistribution\Download\37e0e39dddd9043a22757af09c05215c\acd7b02e03c86f374a14271a7b0844a3e4ad64dc are not trusted: Error 0x800b0109
2019-11-12    18:40:33:158     516    203c    DnldMgr    WARNING: File failed postprocessing, error = 800b0109
2019-11-12    18:40:33:159     516    203c    DnldMgr    Failed file: URL = 'http://download.windowsupdate.com/c/msdownload/update/software/uprl/2019/11/windows-kb890830-x64-v5.77-delta_acd7b02e03c86f374a14271a7b0844a3e4ad64dc.exe', Local path = 'C:\Windows\SoftwareDistribution\Download\37e0e39dddd9043a22757af09c05215c\acd7b02e03c86f374a14271a7b0844a3e4ad64dc'
2019-11-12    18:40:33:159     516    203c    DnldMgr    Error 0x800b0109 occurred while downloading update; notifying dependent calls.

katlani · 13 Nov 2019

after it failed several times to install, i let it be and when i came back it was gone, did they pull it for now until they fix it?

katlani · 13 Nov 2019

katlani said:

after it failed several times to install, i let it be and when i came back it was gone, did they pull it for now until they fix it?

I have decided to manually update it as it was still on October version.

maxseven · 13 Nov 2019

FWIW after dl'ing Brink's link and running it (which worked fine, nothing found on my PC) a re-run of Windows Update came-up clean i.e. it no longer asked me to run the MSRT.