I have a Kingston DT310 256gb flash drive, however for some reason it starts writing to it at around 90mbps, then goes to a crashing halt to around 756kbps, then goes to 3.0mbps-512kbs for awhile before it completely stalls out again... It works fine on my laptop doing around 10mbps (for the most part) but not on the windows 7 computer... I've looked the internet for a few days and havent been able to find anything related to windows 7, its all about vista and xp...