Hi everbody. I have a problem here with my windows 7. It all begins after I updated my windows 7 with update pack. First of all, I use WoW7.0.1 to activate my windows 7 and it actually works for me. I still can log in my window for several times. But just after I updated my windows with updated package and restart, my computer stuck at the boot screen. It seems it can't load the windows. After a while waiting and restarting, I was thinking of formating my computer. I boot with the cd and I try to format it but my friend hold it and saying about flashing my bios. He said he knows how to do it. So he removes a kind of battery on my motherboard and put it in back. After that he switch on my computer yet the problem remain the same. Stuck at the boot screen. Finally we decided to format my computer but now the bios can't even read to boot with cd! Can anyone give me a suggestion what is the main problem of this and the solution? I don't know who is profesional around my place here.