Laptop safe mode?

My laptop doesn't start properly (win10), how can I get into safe mode Ctrl and f8 not working?

Can you get to the login screen?

Then press and hold shift and restart at the bottom right

No only come to the Windows loading screen

Ohoh… Make all of the electricity and battery out, so remove all the residual voltage… Wait a minute, then assemble and try again. Otherwise no idea. Sry

Please name the name of the laptop, then maybe you can say more. Unfortunately, my glass ball can't help

I don't think you can do much with the name, the part is 10 years old. Is a Samsung R719

Of course you can. Because e.g. Sharp has different key combinations than IBM or HP.