So I am stepping in for my father who is having some issues with his laptop. For a few days now, he couldn't get into windows 10.
Upon starting the computer, a big white rectangle would flash during POST, and then it would load for a second before going into the blue diagnostic screen like...
access issues
automatic repair
black screen
computer issues
data recovery
diagnostics
error message
explorer
hdd issues
image backup
operating system
os reinstall
repair tools
safe mode
sfc
startup issues
tokenreference
troubleshooting
windows 10
windows boot