Startup error messages are reported after the Operating System is located on the hard drive. During the process of actual loading of the operating system, if the system finds that a critical file is missing or corrupt or if there is a device driver conflict or a configuration conflict, an error message is generated.
The following are some of the startup error messages:
Error in Config.sys line xxx
Himem.sys not loaded
Missing or corrupt Himem.sys
Device/service has failed to start












