I had my usb pen with all the data stored and now I'm trying to copy those stored data and the files on to my hard disk but to my shock I cannot see anything on that disk. AS I insert my usb pen into the usb port after a brief pause I gets the message saying "insert a disk". I write click on the usd disk drive and seen the property there are no data at all and most surprisingly, file system is not showing FAT nor NTFS.
What could have happened? and most importantly, can I restore this disk at all. I have tried this with two more machine but the result is the same. Any help would very grately appreciated.