Formatted on Mac using Disk Utility to ExFAT. Encrypted using BitLocker on Windows. Using another format makes the USB drive unreadable on Windows computers.I have already tried the following:. Encryption software for windows 10. Using third-party software for formatting and/or encryption is not a problem.Using Disk Utility, I can only format the drive to a non-encrypted FAT32 or ExFAT.Macbooks ..