GFI provides a specific recovery tool for "0x800F020B" or "unspecified" errors associated with 28201. Download the .
After the tool completes, attempt to install the latest Kerio VPN Client again. 4. Manual Driver Installation Workaround
Perform the cleanup for both versions to ensure all registry entries are wiped. Restart your computer immediately after the cleanup. 2. Manually Remove Drivers and Registry Keys If the uninstaller fails, manual intervention is required: error 28201 kerio vpn client
Download the utility from the GFI Support Portal .
Standard uninstallation often leaves behind registry keys that trigger Error 28201. GFI provides a specific recovery tool for "0x800F020B"
typically occurs when the Kerio VPN Client fails to install or update its virtual network driver on Windows systems . This error is most common in Windows 10 and 11 environments due to driver signature enforcement or residual registry keys from previous installations. Common Causes of Error 28201
: Newer Windows versions (20H2 and later) may block older, unsigned Kerio drivers. try this "Force Install" trick:
: Leftover configurations from old versions interfering with new driver registration.
If the installer stops mid-way with the error, try this "Force Install" trick: