To encrypt your drive via Bitlocker, insert the drive and launch This PC/My Computer.So if you often transfer between a Mac and a PC, you should have a partition and an executable for each OS. With that said, one executable file won’t work for all the systems. It means you’ll run the encryption app from the drive and decrypt the data on the spot. This is why it is best to partition your USB drive and keep one partition for the data and the other for the executable decryption software. For example, you might not be able to decrypt the files or read/copy them even when they’re decrypted. USB Drive PartitioningĪs hinted, if you try to use the drive on a computer other than your own, you might face certain compatibility issues. However, there is a catch if you use the drive on different computers and operating systems. Luckily, there are apps that allow for quick and easy encryption, regardless of the operating system you are using. To be honest, unless you encrypt the drive, anybody who gets a hold of it will be able to read your data.