You are not allowed to back up 4 GB or more of data to a drive with FAT32 File System. You may either:

  • Split the data at 2 GB from Where to Backup options.
  • Convert the System File of your drive from FAT32 to NTFS.


You get this when backing up data that exceed 4 GB to a drive with FAT32 File System. FAT32 has inherent limit to the maximum size of any file you load to a disk, which is 4 GB.

Check File System

Using your Windows Explorer, right-click on the drive → PropertiesFile System.


Split the data so that the files do not exceed 4 GB. To do so:

  1. Open your Genie Backup Manager → Edit Previous Jobs → Select the backup job to edit.
  2. Go to step 2. Where to BackupEnable Multi-Drive SpanningUse Fixed Split Size → Set the Size per drive to 2 GB.
  3. Save your changes.

Convert the File System format from FAT32 to NTFS. To do so:

  1. Press the Windows + R keys on your keyboard in order to open the Run dialog → Type cmd.exe and hit Enter.
  2. Type the following command and hit Enter:
    CONVERT DriveLetter: /fs:ntfs

Where DriveLetter is a letter assigned to the drive you want to convert its File System.

This way, the File System of the drive will be converted from FAT32 to NTFS without data loss.