I was using Windows XP Pro on a 250GB Samsung HDD. I decided to upgrade to Vista & thought it was ok, despite a few peoblems. I then went onto create 2 more partitions on the drive so i could have a full install of Vista & then install a full version of XP. I installed Vista on the partition without any problems. But when i tried to install XP it copied some of the files, then said error loading operating system. I booted from disk again & deleted the 2 partitions i made so i could just use the upgraded Vista. But it justr refused to boot up. I tried to formatr the disk but dont think that worked. Now i cant use boot up from disk when the drive is in the PC. I put my backup drive which is full of games & stuff in, & disconnected the other one & it installed no problem. Is my 250GB HDD broken beyond repair? It shows up in BIOS & at the post screen it says its ok.. Thanks for any help on this as im now limited in space for storage, & lost a hell of a lot of music, games, films etc..