Windows Update error 80072efd


If you receive Windows Update error 80072efd while checking for updates, the cause might be a connection interruption between your computer and the Windows Update servers. Close Windows Update, wait 10 to 15 minutes, and then run Windows Update again. You can also wait for Windows Update to run at its next scheduled time.

The Windows Update Troubleshooter is available that fixes some problems with Windows Update, and it might resolve this error for you.

If you continue to receive this error, it might mean that a program running on your computer is preventing Windows Update Services (SVCHOST) from accessing the Internet. Programs that might do this include firewalls, antispyware software, web accelerators, Internet security or antivirus programs, and proxy servers.

To correct the problem, you might need to add the Windows Update website addresses to the blocking program's exceptions or "allow" list or allow Windows Update Service to connect to the Internet through port 80 and port 443.

To add the Windows Update websites to a firewall exceptions list

  • Windows Firewall ships with this version of Windows and should already include these sites in the exceptions list. If you use a different firewall, refer to the software publisher's documentation to see how to add these websites to your firewall exceptions list:

    • http://*.update.microsoft.com

    • https://*.update.microsoft.com

    • http://download.windowsupdate.com

If you continue to see this error, go to the Microsoft Answers website for more assistance.

Error codes this applies to:

  • WindowsUpdate_80072efd

  • 0x80072efd



Need more help?