Switching from 64-bit Kerio Connect back to 32-bit on Microsoft Windows

We recommend to perform a full backup of your current Kerio Connect installation before proceeding

To switch your Kerio Connect from the 64-bit version back to 32-bit version, follow these steps:

  1. Uninstall the 64-bit Kerio Connect version.


Do not remove configuration files and data store during the process.

  1. Move the folder MailServer from C:\Program Files\Kerio\MailServer\ to C:\Program Files (x86)\Kerio\MailServer\.
  2. Locate and open file mailserver.cfg from the moved folder and change all paths from C:\Program Files\ to C:\Program Files (x86)\.
  3. Install the 32-bit Kerio Connect application.


During the process, do not change the destination folder and select the Keep current configuration option.