Laptop doesn't boot


Jan 27, 2013
i have a Compaq Presario CQ50-107NR and my bios was on F.09 (i believe). I was planning on replacing this Athlon x2 QL-60 (1.9 GHz Dual Core CPU) w/ a CPU from my laptop that doesn't work anymore (HP DV4-1275MX). I was gonna put the Turion X2 Ultra ZM-80 (2.1GHz Dual Core CPU) in my current laptop. I went to update the bios (just in case for compatibility reasons when i swap the CPU) and now windows don't boot, I get the BSOD. I've seen that i have to change my HDD option to ACHI but my bios don't have that, the most it has is Virtualization. I have 2 questions.

1. How do i get back into windows w/o losing anything ? (pretty much a fresh install but with a few programs)

2. Will i be able to swap my QL-60 for my Turion X2 Ultra ZM-80 ? They're both S1G2 .

Thanks a lot in advance !!!