Help please, I upgraded to win 10 a week or so ago but forgot to create a guest account for my granddaughter to us. I created one by using Cmd and switching flag on. On trying to use said account it builds the profile but then the screen just flashes continuously and I'm unable to get any commands in, none of the buttons work. I thought I'd logon to my admin account and get rid of the guest account then try again. Windows outsmarted me in that when I restart the machine it goes directly into the guest account and I'm back where I started. No problem thinks I I'll just boot into safe mode and sort it from there. Now I don't really believe this but it appears there is no way to get into safe mode (used to be f8) on startup. It appears you need a working PC to do this!!!!!!!!! If I had a working PC I wouldn't need safe mode. I'm typing this on my iPad as the PC is sitting there flashing at me. Help please, I'm stuck.
The guest account did not appear in 'user accounts' so I had to use Cmd again and 'net user guest /active:no. Which has turned it off and I can now login to the other accounts as normal. I'll try setting up a guest account in another way (other than using Cmd) and let you know how I get on. I'm still somewhat bemused as to how to get into safe mode from boot up?