pen-drive is very much essential at now for transferring data and others purposes, but how to it safe from virus.let us to see solution for keeping safe. When you're using a pen drive to transfer data between PCs, the common problem is viruses. You might format your pen drive many times because of viruses. Some kind of viruses never get delete by normal formatting. Are you disappointed of the result that you get after formatting your pen drive and still find viruses in it? Here I'll give you a solution to format your USB pen drive completely. You can format pen drives using command prompt to remove all the virus files permanently. Most of the times these type of formats delete all the viruses from pen drive. So let's see how to format your pen drive using command prompt. Insert pen drive into your PC Find the drive letter of the pen drive Now click on Start ---> Run In run box, type cmd and hit Enter Now command prompt will appear, in this window type format "your pen drive letter:" For example type : format g: Hit Enter twice Wait for sometime until command prompt verify the file system. Now command prompt will ask you to enter a drive name. After that type the drive name and then hit Enter again. bye bye