Most external drives are shipped with FAT32 file system, which means they can’t handle large files larger than 4 GB in size , like a virtual machine. If you try and copy a file, you’ll get an error “The file is too large for the destination file system“
Using command prompt
In our example, the drive letter is H: so in the command type this:
convert H: /fs:ntfs
The conversion might take a while, depending on how big is your Drive.
Go to “My Computer” right-click on the drive and choose Format. Then select NTFS in the file system drop-down.