Fix: 80072efd Windows Update Error Code

Fix: 80072efd Windows Update Error Code – Windows 7 and Vista

Submitted by Alvin Nyau on 24 Sep 2010 One Comment

Symptoms: While checking for updates, you receive the following error message: An error occurred while checking for new updates for your computer. Error(s) found: Code 80072EFD or WindowsUpdate_80072efd 0x80072efd

Windows Update Servers Might be Busy

One of the causes of this problem might be a high number of update requests on the Windows Update servers. Close Windows Update and wait for 10 to 15 minutes, and then run Windows Update again. You can also wait for Windows Automatic Update to run at its next scheduled time.

Windows Update Services is blocked

A program running on your computer might be preventing Windows Update Services (svchost) from accessing the Internet. Programs that might do this include firewalls, anti-spyware software, web accelerators, Internet security or antivirus programs, and proxy servers.

To solve 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. You should include the following Windows Update websites to your firewall exceptions list:

http://*.update.microsoft.com
https://*.update.microsoft.com
http://download.windowsupdate.com

If you’re looking for a good antivirus program with effective firewall for your computer, please visit: Top 4 Best Antivirus Security Software 2010/2011.

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someone

Problem: When you try to use Windows Update or update Windows Defender to check for and install updates, you receive one of the following error messages:

Windows Defender error code 0x80072efd
Windows Update error code 80072efd

The following solution worked for me on a PC running Vista SP1. This was after all of the other suggestions provided by Microsoft Support at http://support.microsoft.com/kb/836941 and http://support.microsoft.com/kb/971058 did not work.

Solution (Vista SP 1):

1. Click the “Start” Button, click “All programs”, and click “Accessories”.
2. Right-click “Command Prompt” Run as administrator”. If you are prompted for an administrator password or confirmation, type the password or provide confirmation.
3. Type “netsh winhttp reset proxy” (without quotes) at the command prompt, and press Enter.
4. Try the update again.

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