I have two prblems giong on , when I start up my computer i get svchost.exe -application error, the insturction at 0x7c91b21a referenced memory at 0x000ooo1o. The memory could not be written. click on ok to terminate the program. or click on cancel to debug the program. but everytime I start up this comes back up. The other program is after I get on line I get error notice of c:windows\system32/wupdmgr.exe.

Hi roger harner, This issue may occur because of a problem with the Automatic Updates service. Here's an article that addresses this issue. Follow the steps listed in it to fix the issue: You receive an error message after a Windows XP-based computer runs an automatic update, and you may be unable to run any programs after you close the "svchost.exe - Application Error" error message dialog box Here's another post which addresses this issue and many users who have followed the steps suggested in the post have fixed their issue. svchost.exe- Application Error Regards,Divya R – Microsoft Support.Visit our Microsoft Answers Feedback Forum and let us know what you think.