Win10 Crash

Hey Guys,
I have an old laptop I was given, unknown Athlon cpu and 4gig of ram - I decided to put Win10 on it and see if I can get used to it before putting it on this desk top PC.
(I'm an obstinate git, I like Win7 but I accept that I'll have to change eventually)

I installed Win10 and got it working, (it actually ran okay on 4gig of ram) installed Firefox and then Deluge - Deluge required an MS MSCE update.
MCSE required a re-start and then I get an error message which I took sod all notice of, but let it do another restart to auto fix the problem.
Now it won't even boot, I press the on button and the second it tries to start Windows it shuts down, it won't even try to boot from CD.

Before I pull the HD and format it via an external caddy on this pc, is there any trick or hint I can try.
Cheers
Smidsy

I'd try to get into the CMOS setup & set it to boot from the CD.
Actually, I wouldn't, I would try to get it to boot from a USB 'cos the is how I install Win 10 now.
Once I got it up & running Win 10 again, I'd do all the windows updates before attempting to install any apps.