The outline-ipc-start-proxying error on Windows is typically caused by the system language not using the Latin alphabet. Fortunately, this issue can be resolved with a few simple steps. Follow this guide to fix the error:
Download the script from this link.
Run the downloaded tap-windows-9.9.2.exe
file and complete the installation.
Go to Control Panel > Network and Sharing Center > Change Network Adapter.
Find the 'TAP-Windows Adapter V9' in the list of network adapters.
Rename this adapter to outline-tap0.
After renaming the adapter, open the Outline application.
Click the 'Connect' button next to your profile name to activate the connection.
By following these steps, you can resolve the outline-ipc-start-proxying error effectively. For more information or to create an access key, start the Outline VPN Telegram bot.