Recovering your Kerio Control password using a USB flash drive

Kerio Technologies provide a tool for password recovery. The tool is designed to run from a USB flash drive.


We recommend to use this method to update Kerio Control Box and Kerio Control Software ApplianceA special operating system designed to run on a computer.. In this article, Kerio Control refers to both Kerio Control Box or Kerio Control Software Appliance.


This article describes Kerio Control Box 1000/3000 series. For Kerio Control NG series, read Recovering your Kerio Control Box NG series password using a USB flash drive. The password recovery tool is designed for a single use. Once you perform the operation, the content cannot be reused even if you restart with the flash drive still in the USB port.

Creating and using a password recovery tool

To recover a lost administration password:

  1. Insert a USB flash drive into a USB port on your computer.
  2. Make sure that only one partition with file system FAT16 or FAT32 (VFAT ) is created on the flash drive. The USB drive must not be formatted by file system NTFS or ext2, ext3, or ext4.
  3. Save the file kerio-control-password-reset to the flash drive.
  4. Switch off Kerio Control.
  5. Plug the USB flash drive into the USB port of your Kerio Control Box or the computer where Kerio Control Software Appliance is installed.
  6. Switch on Kerio Control. When the password is reset, the box beeps once.
  7. Wait for the Kerio Control Engine to start up (three beeps).
  8. In your web browser, open the Kerio Control administration interface.Then the activation wizard opens.
  9. The wizard asks for a new administration password.
  10. Create a new password for the admin account.

If the steps above do not work, try another flash drive. Different Kerio Control Box models require different USB drive formats:

  • Kerio Control Box 1110, 3110, 3120, and 3130 require a USB flash drive formatted like a floppy disk (not partitioned).
  • Kerio Control Box 1120 requires a flash drive formatted with a master boot record (MBR). USB drives with floppy-type formatting cannot connect to Kerio Control Box, but can be reconfigured to work. See Formatting a USB flash drive with MBR.

Related articles

Diagnostic tools for Kerio Control Box

Restoring Kerio Control default configuration using a USB flash drive

Updating Kerio Control using a USB flash drive