OK here is what will work. Formatting the drive will leave 0s. !st thing is to buy a new card. 2nd move everything on the Company card to the new card. 3rd down load BleachBit and use it on the original card. then format the original card and finally copy the company files back onto the company card. I would actually buy two new cards. and transfer the company data to one of the new cards so you can verify that only company files are on it and then load the company card. If you are not good with computers you may want to hire a geek. to do it for you. Another thing to do with the old card. If it is in the camera use the camera to format the card. Not all formatting is the same. Some cameras use unique formatting to enable the camera start up.
