flash drive or any card reader is perfectly working in windowx xp but when i insert in my windows 7 it show drive is not formated .
then I formated on windows 7 it works but when i restart windows 7 it again show flash drive is not formmated .
every time i restart windows 7 it does not open flash drive or any card reader and show drive is not formated . at the same time when i boot in windows xp they all work perfectly in windows xp . what to do within windows 7 to solve this problem