click start control panel administrive tools computer management device manager scroll down universal serial bus controllers you should see a yellow question mark?
right click to reinstall drivers
if you can see your usb drive but its not working
ports(com&lpt)right click update driver if this fails to fix the problem
click start control panel administrive tools computer management disk management right click on your drive select properties click tools you should see click check now click start two boxes automatically fix files and scan for and attempt recovery of bad sectors place then a tick in both boxes then select check now start or you might tick one box then return after its finished the first repair then return and tick the second box you should not do anything while the chkdsk utility is in progress any input may damage this drive
http://majorgeeks.com/Dr._Freeware_System_Utilities_d6416.html
Dr.Freeware System Utilities which includes data recovery software, data backup, password reset tools for Windows helps you to maintain your system. Dr.Freeware is freeware, you can download and use it for free. Data Recovery/Data Backup: Supports Logical scan and Raw scan, Supports NTFS, FAT, UFS 1, UFS 2, EXT2FS, EXT3FS, and ISO 9660 file sytem, Supports IDE/SATA/USB Hard Drives. Data Recovery - Recover your lost data Available in Live CD to run offline Recover accidentally deleted files in your hard drive Recover data from RAW Drive(partition table or file system is damaged) Support NTFS, FAT, UFS 1, UFS 2, EXT2FS, EXT3FS, and ISO 9660 Support IDE/SATA/USB Hard Drives, memory cards, "USB Memory Drives" Drive Dumper - Backup your hard drive Available in Live CD to run offline Available to run on Windows Support Windows 2K / XP / 2003 / Vista / 7 (Windows Editition) For data rescue, backup, migration, or computer forensics etc. Transfer important important data from damaged Drive(partition table or file system is damaged, has lots of bad data blocks) Support NTFS, FAT, UFS 1, UFS 2, EXT2FS, EXT3FS, and ISO 9660 Support IDE/SATA/USB Hard Drives, memory cards, "USB Memory Drives" Windows Password Cleaner Available in Live CD to run offline This is a utility to blank the password of any user that has a valid (local) account on your Windows system. You do not need to know the old password to blank the password. Support Windows NT/2k/XP/Vista Support IDE/SATA/USB Hard Drives hope it helps
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