Yesterday i reinstalled my ubuntu, but i don’t know how to destory my mbr record. I’ve 2 hard drives, one is 120G IDE hard drive installed Ubuntu, the other is 250G SATA harddrive installed Window Xp. And usually 120G harddrive is my first boot disk, and grub should be installed there. But last night i installed Grub2, I don’t know how to rewrite my 250g disk’s mbr.

Okay,right now let me fix it. You need administrative privileges to make it work!

First,you need a tool named “MBR Fix”, click here to download.

Second, extract it to a directory. You can find there’s only one command line tool.

Third, open your dos prompt, cd to the directory where your mbrfix locates.