UEFI boot issue HP machine

[OspreyO]

I'm messing around with a HP6200pro. I can wipe and install the original OS, W7/32bit with the recovery discs I made. But I cannot install any other OS. I was trying the Windows 8 evaluation 64bit but it fails with can't access boot etc. I assume this is due to the UEFI bios. I can acess the bios but I don't know what I should be looking for here.

I wanted to install a 64bit OS because I put 8GB of ram in the machine.

 

[OspreyO]

Thanks. I'll check that out. I did see options for backing and restoring the OS. Nothing about a secure zone. I'll have another look. I don't think I could be bothered hacking it.