Hi Gilbertomutambo,
- When exactly are you receiving the WindowsUpdate_8024400A?
- Does the computer log off or shut down while performing any windows updates?
- Have you made any recent changes on the system?
Method 1:
If you are using Windows 7, then you can refer to the following article and see if it helps.
Windows Update error 8024400a, 8024400d, or 8024400e
Method 2:
You can also try performing a clean boot and check.
A clean boot helps to verify if any third party application services or startup item is causing this issue.
You may refer the following KB article to put the computer in clean boot:
How to troubleshoot a problem by performing a clean boot in Windows Vista or in Windows 7
After the trouble shooting steps please refer to clean boot link to put the computer back to normal start up mode.
- Which player are you using to play music?
If you are using Windows media player, you can try to run the Windows media player troubleshooter in Windows 7 and check.
Open the Windows Media Player Settings troubleshooter
Hope this information is helpful.