Following a house fire, which caused all the electrics in my house to fry and cut out, I am completely unable to access my hard disk. I've plugged it in to my brothers computer and the disk is recognised in the load up but then the computer freezes and cuts to a blue screen that says about using CHKDSK. However, the only way I can work out, bearing in mind I am a complete novice at sorting these things out, to load up windows to use CHKDSK is by also having my brothers hard disk plugged in, in which case the computer fails to recognise that my faulty HD is plugged in at all. I've got a lot of important infomation that I need to get back. What am I doing wrong?