I'm not sure how differant XP media center Edition is but you could clear the history \ cache if these folders are there.
Step 1 Register DLL files.
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By trying this step, we can check if the update engines are working properly.
1. Close all instances of Internet Explorer.
2. Click Start and Run, type "Regsvr32 atl.dll" (without quotes) in the Open box and click OK.
Note: There is a space between regsvr32 and atl.dll
3. Similarly, one by one, register the files listed below:
Regsvr32 msxml3.dll
Regsvr32 wuapi.dll
Regsvr32 wuaueng.dll
Regsvr32 wuaueng1.dll
Regsvr32 wups2.dll
Regsvr32 wucltui.dll
Regsvr32 wups.dll
Regsvr32 wuweb.dll
Regsvr32 qmgr.dll
Regsvr32 qmgrprxy.dll
Regsvr32 jscript.dll
Note: If you encounter errors while registering any of these files then skip that file and continue with the next one.
If the issue persists, let's move on to the steps below to verify Windows Update services and temporary folders.
Step 2 Verify the relevant Windows Update services.
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1. Click Start->Run, type "services.msc" (without quotation marks) in the open box and click OK.
2. Double click the service "Automatic Updates".
3. Click on the Log On tab, please ensure the option "Local System account" is selected and the option "Allow service to interact with desktop" is unchecked.
4. Check if this service has been enabled on the listed Hardware Profile. If not, please click the Enable button to enable it.
5. Click on the tab "General "; make sure the "Startup Type" is "Automatic" or "Manual". Then please click the button "Stop" under "Service Status" to stop the service.
6. Then please click the button "Start" under "Service Status" to start the service.
7. Please repeat the above steps with the other services:
Background Intelligent Transfer Service
Event Log
Remote Procedure Call (RPC)
Note: Event log service is enabled on all of the hardware profiles; this service does not have an option to enable or disable on certain hardware profile.
If it still does not help, let's proceed to step 3.
Step 3 Reload the Update temporary folders.
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One possible cause is that the temporary folder for Windows Update is containing corrupted files. Let's erase all the files there to get the system clean.
1. Click Start, Run, type: cmd and press Enter. Please run the following command in the opened window.
Net stop WuAuServ
2. Click Start, Run, type: %windir% and press Enter.
3. In the opened folder, rename the folder SoftwareDistribution to Sdold.
4. Click Start, Run, type: cmd and press Enter. Please run the following command in the opened window.
Net start WuAuServ
Please test the Windows Update website and let me know the result. If the issue persists, to clarify the issue and provide more accurate troubleshooting steps, please assist me in collecting the following information.
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