Windows 7 Windows Update error code 800b100

canu49 · Mar 8, 2012

I'm running Windows 7 64 bit on a dell laptop ( which is wireless) About 95% of my automatic updates fail with the code "800B0100" tried the "fix it" from MS, no luck. I try to download the "system rediness update tool" from MS but keep getting a page not found prompt. I turned off the windows and McAfee wirewall, but that didn't help either. I'm using a Netgear N600 router. Maybe it has a firewall. It's just a Windows problem though, all other updates ( McAfee, Adobe, etc.) work ok. I'm really stumped.

Saltgrass · Mar 11, 2012

That file shows part of the problem, you have many corrupted backup files and catalogs that have been corrupted or not verifiable. Why this is occurring needs to be addressed and then the entire database needs to be rebuilt.

You are running an anti-virus that might be involved. When I was running one, I would see things like extended update install times, especially during reboots, and many failed install attempts. There might be a setting to stop it from interfering, if it is, but you need to see if you can find that. If you want to keep what you have, then keep an eye on the updates to see if they become corrupted again if a repair can be accomplished.

If you have run any registry cleaners, you might stop that for testing, or...

canu49 · Mar 14, 2012

Actually, Windows Defender is running in addition to Mcafee ( Mcafee seems to be controling both). Also, some ARE starting to get through. Six of the first nine installed, and the unimportant updates are going through. I'll try the fix.

Drew · Mar 14, 2012

Yeah, McAfee is shutting off things that are native to the OS... its anti-virus & anti-malware; in that sense, it's controlling both. All will be fine when McAfee is gone.

Windows 7 Windows Update error code 800b100

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