Hi everyone\n \nA friend has a laptop with Windows 2000 and has just run into a problem when he tried to turn it on. I understand that he's not installed anything or done any system tweaks. He received the error message "ntoskrnl.exe is missing or corrupt". He can't get to safe mode, nor can he get to DOS (I'm not sure if it's normally possible with Windows 2000) because the same error is generated after he pressed F8 and decided to go to safe mode. From his description, there is an option of reverting to the last known good configuration (after F8 ) but this also generates the same error.\n \nIs it possible to replace this file without going to the trouble of seeing a computer engineer? Can the hard drive be "interrogated" from another PC (maybe USB to USB or via ethernet cable?) and the missing or corrupt file "dropped" into place using (for instance) windows explorer? I guess that an engineer might be able to take out the hard drive and put it into some form of caddy and then hook that up to a desktop but I realise that accessing the hard drive in a laptop in this way is not as easy as with a desktop.\n \nAny ideas that someone who doesn't have hardware experience can try or will he have to take it for an expert to resolve?\n \nMany thanks for your time.