This is quite an interesting problem that I am having at the moment. My sister's computer is having some problems. Whenever I go to start the machine it tells me that something has gone wrong with windows and gives me options of which mode to start in (safe, safe with command, safe with networking and normal). If I go to any of them with the exception to normal I get returned to the same screen. When I select normal I get the blue screen of death.
To compound the matter, I placed my sisters drive in my computer (with my fingers crossed) and there was no problem with it when I started it normally. Encouraged by this I replaced the drive in my sisters computer only to be confronted by the blue screen of death with an error message that refers to a problem with "atapi.sys", any ideas?