Windows disc won't restore Windows 7

[Discombobulated]

Hello,
I had to turn off my laptop via the power button the other day and now it will not boot up. The only options given are F2 -set up and F12 - boot options.
F8 doesn't work to enter safe mode nor is there an option for safe mode in F2 or F12.
I've tried to boot from a disc but it tells me it has detected a problem and to scan for viruses and I can't find a way to exit that screen. None of the F keys work. Please help. FYI I have basic knowledge of computers and know none of your fancy lingo.

 

[phil22]

Press F2 for Setup (BIOS Setup) as soon as you see that screen that says "Press F2".

Go to the "Boot" section.
Put the CD/DVD drive at the top of the boot device list.
Save and Exit the BIOS.

Your laptop should now boot from any optical disc that is bootable.