+ 1 Votes I would start out by testing the Flash Drive throughly OH Smeg Updated - 1 year ago They do not generally speaking get corrupted partition tables unlike USB External HDD's which do get corrupted partition tables when the Safely Remove Option isn't used. When they show as RAW or Unformatted they are generally speaking failed and need replacing. Flash Drives are not very reliable and should never be used for Critical Backup they are fine from transferring data about but really unsuitable for Backup. Anyway if the unit is functioning correctly you can start off with running Checkdisc on it from the Run Line in Windows chkdsk /x where x is the drive letter. That generally speaking will cure corrupt Partition Tables but failing that Recuva is a free utility which you can use and is made by Piriform the download link from it's maker is here http://www.piriform .com/recuva remember to remove the space from between piriform and the .com for a working link. Though to be perfectly honest if it is vital to recover your lost data as apposed to just being nice and the Flash Drive is actually working as apposed to failed you really should pay a professional to do the recovery. If you mess with it now unsuccessfully it only makes things harder and much more expensive for a professional to attempt the recovery and increases the chances of lost data. If you do attempt Recuva make sure to read the directions thoroughly and never write anything to the Flash Drive while performing the recovery. If you write tot he failed drive you will overwrite existing data making it very hard and exorbitantly expensive to recover. Generally speaking it's beyond peoples pockets to recover overwritten files but Government Agencies particularly Law Enforcement can do this but it's very expensive. Col + 0 Votes Re. andersonn233 December 26, 2012 at 7:25pm PST An reliable data recovery tool can help you to recover data from raw partition, Download a tool from http://www.freedatarecoverysoftware.org/ and recover lost videos and other files. + 0 Votes Thank you Askjenny 1 year ago Thank you for your advice, I will never use a flash drive to back up my data. Thank you for your Recuva download link. I will try it to recover my data. + 0 Votes i have recovered all my data. Askjenny Updated - 1 year ago OK! i have tried Recuva, it is totally like a miracle. i have recovered all my data by applying it. it scans quickly,too. because, i always think scanning can take a long time to go like 360 virus scan, but it just take a while. i am really satisfied with it. how about iCare Data Recovery Free? could it do that ? but i also want to know whether Recuva could restore some data from a drive after format or deletion, or could it recover data from memory card? as we all know, memory card is widely used on our phone or digital camera. as we use them, we may also encounter some accidentally deletion or format ,or even raw files. so i really want to know further information. how about iCare Data Recovery Free? could it do that ? + 1 Votes how about iCare Data Recovery Free Askjenny 1 year ago how about iCare Data Recovery Free? could it do that ? + 0 Votes Re. andersonn233 December 26, 2012 at 7:25pm PST An reliable data recovery tool can help you to recover data from raw partition, Download a tool from http://www.freedatarecoverysoftware.org/ and recover lost videos and other files.