partition problem

[MakisM1]

signwmi gia ta greeklish alla o ypologistis mou den exei ellinika.to problima me to partition lithike to ekana me live usb.apla tora dimiourgithike ena allo problima.otan paw na kanw install ta xp mou bgazi enan disko c: pou exei 1000mb mono eleuthera kai den mou emfanizi to disko ntfs /dev/sda3 pou exo xorisi 140gb gia ta windows pou thelw na kanw install.pos tha ginei na ton emfanisw?to pc mou ine acer aspire one netbook.