Hey up all... I have an odd little problem with a 2.5" SATA hard drive i took out of my Sony Vaio lappy. Well the lappy died,biggest pile of you know what,EVER ! So i took out the HDD to see if it was working and to get the files off it. Plugged it into my PC and bingo,up it popped,worked a treat. All the files were saved. Here's where it gets funny. I thought to mi sen lets load and OS onto it make sure all is well. After trying XP,Vista,W7 and iAtkos MAC OSX I can NOT get any OS to load onto the bloody thing. Error after error freeze after freeze after freeze. The latest error I got was " Windows can not load,GPT partition Style" never heard of that one. So anybody got any idea whay a HDD would work connected to a PC but not allow a OS to be installed onto it.