[Solved] Error during startup: Stop: c000021a (Fatal System Error) I have error while i start my windows. its showing blue screen with error code c000021a (Fatal System Error). i think its same problem like jharry has posted here. I cant do it myself as broni mentioned that the script was written specifically for one user. and i think i need help. so can anyone help me in this case? especially broni. Thanks for the attention.