128 gb cruzer glide shows in drive manager but not working

so im running windows 7 pro 64 bit on one of my computers and xp 32 bit on another computer it works on the xp computer but when plugged in to the win 7 it shows up in my computer but cant be formated, nothing i do in the drive manager will get it to work. i have returned it and got another one from the store, still to the same effect. any idea’s?

Check what apps you have running on the Win 7 machine.  Several have been reported as conflicting with Cruzers.