how to change file system

[adbp1]

i have my 500 gb aaks at het moment set at fat 32 but it cant take files bigger than 4gb which getting annoying, i have over 300gb full so dont want to loose any data.
anyway i can change to ntfs without loosing or transfering?

 

[adbp1]

ok tried that with no joy for some reason my pc wont let me, either im just typing it all wrong or vista being annoying !!
ive been told to use acronis, is this any good and will i loose any data

 

[adbp1]

ok will try again at home and not at work and take screen shot.
oh and how do you back up your back up!!?, i was thinking to buy another 500gb aaks maybe wait then swap everything then.