Why can’t I install Outline Manager on Windows?

You may see this error message: “Sorry, it looks like Outline is not properly installed. Please try installing it again. If that doesn’t work, please submit feedback.”

If you’re using Outline on Windows, occasionally, you may run into an unexpected error. In most cases, the Outline TAP adapter (driver) needs to be deleted and Outline should be reinstalled.

The steps may vary based on your Windows operating system version, but below are general steps for how to uninstall the TAP adapter and Outline Manager and then reinstall Outline Manager.

1. Uninstall the TAP adapter for Outline Manager
   1. Go to Device Managers, then Network Adapters
   2. Find the “TAP-Windows Adapter V9 file or the TAP adapter associated with Outline
   3. Uninstall or delete this adapter. Keep in mind that this could affect other VPN apps that you have installed.
2. Uninstall Outline Manager
   1. Go to Programs & Features, then to Uninstall Program
   2. Find the Outline Manager app and uninstall Outline Manager
   3. Download the latest version of Outline Manager and reinstall it on your Windows device. The new installation should automatically install a new TAP adapter.

If you’re still having trouble, contact support.