Every machine I install the lastest Windows Update Agent on results in a 800B0001 error when getting updates “FROM YOUR SYSTEM ADMINISTRATOR” but have no problems when getting “UPDATES FROM MICROSOFT UPDATE”.

This is the same as:

All of the machines in question are Win 7 64Bit Enterprise and are of varying makes and models (ie. Toshiba R700 laptops, whitebox PC’s…). Machines without the recent Windows Update Agent, work just fine with either my WSUS server or MS Update.

I have run KB949104’s FixIt tool and it does find errors, says it repaired them but the problem still exists and if I run the FixIt tool again, it finds the same errors.


This is apparently a known issue Microsoft has a hot fix for.  Below is the process I followed based on what the kbase and Microsoft partner support told me:

All of these instructions are to be performed on the WSUS Server.

  1. Download and run Update for Windows Server Update Services 3.0 SP2 for x64-based Systems (KB2720211)
  2. After the hotfix is complete, Stop your WWW Service
  3. Stop you UPDATE SERVICES Service
  4. Perform an IISRESET (which seemed redundant to me, but it does start the WWW service)
  5. Start your UPDATE SERVICES

Even though the hotfix did not say it requires a reboot, MS support was quite clear that it did require a reboot.  However, I did not reboot my WSUS server and all is well now 🙂



Aziz · December 15, 2016 at 12:51 pm

Hi my friend,

Thanks alot for your post , it helped me well !!!

you’re great !

Baroody · July 16, 2015 at 2:57 am

Many thanks Ian, it took me a lot of time to find this fix…

Baroody · July 16, 2015 at 2:56 am

Many thanks, it took me a lot of time to find this fix.

Honza · February 8, 2015 at 6:12 am

Thx, solved for me.

Ken · November 15, 2014 at 10:01 am

I’d been battling this problem all week. Your fix worked like a charm.

Jeroen · October 30, 2014 at 1:47 am

Finally fixed this issue, thanks!

Hilo · October 22, 2014 at 2:47 am

Thank you very much! 🙂 It helped me alot

How To Fix 800b0001 2012 Errors - Windows Vista, Windows 7 & 8 · November 11, 2014 at 9:05 am

[…] SOLVED: Updates from the WSUS server Result In Error … – Hubert Trzewik 09-19-13. Worked for me. Thanks a lot! WSUS errors are always a headache. I’ve lost several hours fighting with 800B0001 at client site.. and uncle …… […]

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