Ub6250 driver for windows 7 32 bit, windows 7 64 bit, windows 10, 8, xp. uploaded on 3/3/2018, downloaded 6157 times, receiving a 85/100 rating by 3923 users.. This page contains the driver installation download for ub6250 in supported models (aspire one d255) that are running a supported operating system.. Cannot find a windows 10 driver for ub6250 for my msi cr620 anywhere. card reader fault after upgrade to windows. original title ati catalyst. ub6250