Option appears on power up to start Normally, Safe Mode, safe mode with prompts, etc. Cycles through loading of data then screen goes blank. Tried function buttons (1,2,12) No response.
You're going to have to provide more info than that. Is it a Ford or a Chevy? Coupe or sedan? 4, 6 or 8 cycl? Auto or stick? Catch my drift? If we have no idea what you're working with, it's very difficult to provide any answers.
If you select safe mode with networking will it load into a version of windows? You may have corrupt boot files or failing hard drive or bad ram module. So we work through elimination.