Start here:
http://v4.windowsupdate.microsoft.com/troubleshoot/
This error is typically caused by proxy/firewall settings. For testing
purposes you may want to temporarily bypass the firewall and try Windows
Update again to see if error persists. For questions regarding firewall
configurations, please contact the firewall manufacturer.
Other settings to verify:
Windows Update requires both Ports 80 and 443 are enabled for both incoming
and outgoing traffic Verify the firewall is not blocking ActiveX controls
and or Scripting functions
This issue may be resolved by adding the Windows Update sites to the
exceptions list in the Internet Options Proxy Settings. To access the
Exceptions settings:
1. Open Internet Explorer
2. Click Tools / Internet Options
3. Click the Connections Tab / LAN Settings
4. Click the Advanced Button and add the following to the exception list:
windows.microsoft.com
v4.windowsupdate.microsoft.com
download.windowsupdate.com
Note: Applications like web accelerators; TweakMasterDNS, Spy Blocker, etc.
can add static IP entries for the Windows Update site into your HOSTS file
which can cause the 0x80072F76 error message. Check your HOSTS file (it may
also be called HOSTS.SAM) and make sure you don't have any static IP entries
for the Windows Update web site listed in the file.
If you are running Win98/ME/XP, file is located in folder: C:\Windows
If you are running WinNT/2K, file is located in folder:
C:\WINNT\system32\drivers\etc
To view the HOST file, associate it with Notepad. If you find IP addresses
associated with Windows Update delete the entries and save changes.
(-Lucy [MS] )
--
HTH...Please post back to this thread
~Robear Dyer (aka PA Bear)
MS MVP-Windows (IE/OE), AH-VSOP
Protect Your PC
http://www.microsoft.com/security/protect/