Usb drive data loss

Hi
Can Anyone help. I purchased a 32 gb flash drive in april of this year and have had problems with it. It loses data for some reason. Whenever I disconnect and reconnect it data is somehow lost. Now I do click on the eject tab and shut if down completely before disconnecting it which was the first thing I tried. Data keeps being deleted somehow. Is there anyprogram to put on the drive itself to prevent the loss or corruption? Any suggestions?
thanks

Hi,

there are fake flash drives on the market, which don’t have the memory advertised.

You can test your flash drive with a tool published by the german computer magazine c’t: http://www.heise.de/software/download/h2testw/50539
(If I remember correctly, you can change the user interface to English)

Michael

I tested the drive and it definitely meets the requirements as when I bought it. It somehow loses data for no reason.