Hey!
1. Have you made any changes to the computer prior to the issue? (Install anything, updates, etc)
2. Do you get any specific error codes?
A pool header issue is a problem with Windows memory allocation.------- Device driver issues are probably the most common ------ but this can have diverse causes including bad sectors or other disk write issues, and problems with some routers. (By theory, RAM problems would be suspect for memory pool issues).
Try this:
Method 1:
Disconnect any external devices connected to the computer except the mouse and keyboard, check what happens.
If that doesn't work: Try going into safe mode and seeing if it happens there. If it works in safe mode you may have to uninstall some drivers (or...