Applies to Windows 7

Windows Update error 8024400a, 8024400d, or 8024400e

If you receive Windows Update error 8024400a, 8024400d, or 8024400e while checking for updates, it might be caused by 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.

An automatic troubleshooter is available that fixes some problems with Windows Update, and it might resolve this error for you.

To run a Windows Update troubleshooter

Click this button:
Fix this problem
In the File Download dialog box, click Run, and then follow the steps in the wizard.
Open Windows Update, and try to install the update again.

If that didn't work, try the following steps.

For more information about Internet connection problems, see Why can’t I connect to the Internet?

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

For steps you can take to fix this problem, see this article about connection-related update errors on the Microsoft website.

If you continue to see this error, see this automatic troubleshooter on the Microsoft Support website, or go to the Microsoft Answers website for more assistance.

Error codes this applies to: