Stuck on WINS BOOT MSNAGER

Hi
I have hp dv7,
Wins 7(only)
Samsung 840 SSD
Recently had problems like ctrl, back space and delete keys not working at all, cd drive not working and device not working error in device manager section under dvdcd section. Now suddenly this message started coming up on booting. Boot manager screen saying choose OS but i only have win7, esc to cancel, enter to choose but none of the keys are working. I think a fresh win7 install is the option but how can i get in to boot setup and boot from win7 usb? F8 don't work either on startup.

Any ideas?

Have you booted into HP Diagnostics via the ESC key at boot to test the hardware?

You can also remove the WIndows Boot Manager following Dual Boot - Delete a OS - Windows 7 Help Forums starting with Step 3.

Many HP's have a Minimal Recovery option when running HP System Recovery which is nearly as good as doing the superior Clean Reinstall Windows 7.

If not everything is included in the Reinstall tutorial in blue link. Read the Special Note for HP Owners at the end.

Hello again, as i mentioned few keys are not working and esc key is one of them. Now i would like to do a clean install but cant get in to bootsetup because esc key is not working, is there any other way to enter boot setup?

Yes and esc dont work

The system is booting fine now and working fine but few keys not working so i thought just reinstall win7 but i cant access boot menu because esc key not working