BSOD, can't boot from CD

My laptop is a Dell Inspiron 5737 with Win 7.

Hi guys, so yesterday I was changing some values in the registry and I was asked to reboot the system. It never got done, as a BSOD occured.

The BSOD error message is 0x00000074. I can't turn the system on in a safe mode as well - I get the BSOD too.

My only choice seemed to be formatting the whole thing, but when trying to boot from the CD, a message I get is:

Realtek PCIe fE Family Controller Series v1.34 (10/07/13)

PXE-E61: Media test failure, check cable

PXE:M0F: Exiting PXE ROM.

No boot Device Found. Press any key to reboot the machine.

That makes my laptop basically useless. Is there anyway I could fix the toast?

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