svchost.exe at startup
Application Error : The instruction at "0x7c91b21a" referenced memory at "0x00000010". The memory could not be "written"
The instruction at "0x7c91b21a" referenced memory at 0x00000010"
application error 0x7c91b21a 0x00000010
The instruction at "0x7c928fea"referenced memory at "0x00000010". The memory could not be 'written'
Why is your firewall not on?
Here is a popular remedy for that situation:
It appears the latest update for Windows Media Player may be contributing to this problem when the system has the Windows Driver Foundation Service enabled and running.
Unless you are writing your own drivers for XP and using the Windows Driver Foundation Service to help you debug them, you should disable the WDF Service.
Click Start, Run and in the box enter:
Click OK to launch the Services Applet
Locate the Windows Driver Foundation - User-mode Driver Framework Service, right click the Service, select Properties and choose Disabled and OK your way out of the Services Applet to save the changes.
Note that you will not be able to "Stop" the Service first, but that is okay.
Restart your system (the WDF service is now disabled) and check your failure condition now.
No trying things or guessing here - just the facts.
Real "Answers" do not begin with the word "Hi".