I have a laptop running Windows XP Home edition with SP2. I restarted it tonight because a piece of software that I use to track network activity had stopped doing so. It's done so before and restarting usually resolves this. However the machine no longer boots up. The BIOS loads correctly and the Windows ZP Splash screen comes up with a system error pop up. The heading is:
lsass.exe - System Error
The message is:
An invalid parameter was passed to a service or function.
My only option is to close the window with or hit ok. Either action results in the machine restarting. I can't get past this and a scorched earth plan of action is not an option. What can I do?