“Error 0x80072f76,” During Windows Update

When you try to use the Microsoft Windows Update Web site or the Microsoft Update Web site, you may receive one of the following error messages:

  • Error 0x80072EE2
  • Error 0x80072EE7
  • Error 0x80072EFD
  • Error 0x80072F76
  • Error 0x80072F78

Try these steps:

1. Start Microsoft Internet Explorer.

2. On the Tools menu, click Internet Options.

3. Click the Security tab, and then click Trusted Sites.

4. Click Sites, and then click to clear the Require server verification (https:) for all sites in this zone check box.

5. In the Add this Web site to the zone box, type the following addresses, clicking Add after you type each address:


6.Click OK two times.

Still have the problem? Try the following:

1. Click Start click Run, type notepad %windir%\system32\drivers\etc\hosts, and then click OK.

Note If you are prompted to choose a program to open the hosts file with, click Notepad, click to select the Always use the selected program option, and then click OK.

2. In Notepad, configure any lines in the hosts file that contain entries for Windows Update so that they are not read when the file is accessed. To do this, place the number sign (#) in front of any line that contains “microsoft” and “update.” For example, add the number sign (#) to the beginning of the following entries:

# http://update.microsoft.com
# http://windowsupdate.microsoft.com

3. Remove any lines that contain entries for Windows Update or for Microsoft Update. For example, remove the following entry if the entry exists:

4. On the File menu, click Save.

5. Exit Notepad.

6. Restart the computer.

Note If you do not want to restart the computer, you can also flush the DNS resolver cache. To do this, follow these steps:

a. Click Start, click Run, type cmd, and then click OK.
b. At the command prompt, type ipconfig /flushdns, and then press Enter.

If that doesn’t work, continue with the following:

1. Open Internet Explorer.

2. On the Tools menu, click Internet Options.

3. Click the Connections tab, and then click LAN Settings.

4.In the Local Area Network (LAN) Settings dialog box, click to select the Automatically detect settings check box, and then click OK.

5. Quit Internet Explorer.

6. Click Start, click Run, type cmd, and then click OK.

7. Type the following commands. Press Enter after each command.

a. proxycfg -d
b. net stop wuauserv
c. net start wuauserv
d. exit

If that doesn’t work, look for anything that could possibly interfere with connectivity. Any software that interfaces with the network connection could be causing the problem.


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