OK, I'm in Ubuntu Live now.
I've opened the disk in fdisk.
p to print the partition table gives this:
code:
Device Boot Start End Blocks Id System
/dev/hdd1 1139 6130 40098240 c W95 FAT32 (LBA)
/dev/hdd3 * 6131 9729 28908967+ 7 HPFS/NTFS
Help says that t is to change a partition's system id.
I cant see 07, 87 or 83 anywhere.
What should I do next?
Update
Scratch that, I think I've figured it out.
Update
I've edited it, I'm going to try to install Windows now. Wish me luck.