Windows will only format a drive as exfat if windows recognizes it as a removable drive.
Currently, you cant boot to an exfat formatted drive.
If windows recognizes your drive as removable, you should have a exfat format option like the picture shown.
Once youve formatted your drive, well need to create a Truecrypt container to keep our encrypted files.
At this point youll want to create an encrypted container and format it either NTFS or FAT.
Then:
Once youve created your container, mount it as a drive with Truecrypt.
We can, however, format the volume from the command line.
Using the following command:
- format
/FS:exfat /Q
Format is a pretty basic command.
Replace
with the drive you want to format.
Truecrypt Volume in Windows 7 and OS X with large file support| Rowan Watson via Wayback Machine