I installed the windows 8 consumer preview recently and it errors when installing some wifi drivers. After re-setting my bios I could boot into windows 7 home premium 64-bit successfully after a biosy screen when it asked me which OS I want, 7 or 8? This is when I boot into my hard drive. When I boot into my ssd where 7 is, it still boots into 8 and I get the error screen. I have 7 on my Intel 310 series 160GB ssd, and 8 on my 500GB Hitachi HDD. I formatted my hitachi to have a partion with my data and one with 8. I have no data I need on 8. Can I re-format my hard drive tmdelete 8 and then boot off my ssd without my system becoming unstable?