The Blue Screen of Death (also called BSoD, Blue Screen, or bluescreen), known officially as a Stop Error or a bug check, is the error screen displayed by the Microsoft Windows family of operating systems upon encountering a critical error, of a non-recoverable nature, that causes the system to crash. The term is named after the color of the screen generated by the error. Stop errors are usually hardware or driver related, causing the computer to stop responding in order to prevent damage to the hardware, whereupon, in the latest versions of Windows, the screen presents information for diagnostic purposes that were collected as the operating system performed a bug check.
Blue Screen errors occur when your Windows operating system detects an error it cannot recover from without
losing data, Windows detects that critical OS data has become corrupted or when Windows detects that hardware
has failed in a non-recoverable manner. Blue screen error can appear after installing new hardware or software.
Stop errors are typically hardware or driver related, causing the computer to stop responding in order to prevent
damage to the hardware. Your Windows operating system will halt and the diagnostic information is displayed on a
Other serious error message that appear during startup include Smwdm.sys, ccApp.exe is not responding,
HTTP.SYS, USBUHCI.sys, CSRSS.exe, EAPS2KBD.sys, Delprot.sys, SRVLOC.sys, SAVRT.SYS, AGRSM.sys and
Blue Screen or STOP Error Message Troubleshooting