Update installation.md

docs/adguard-vpn-for-windows/installation.md

@@ -63,5 +63,14 @@ Besides running the advanced uninstaller in its user-interactive mode, you can a
 
 1. Open Command Prompt by typing *cmd* from the Start menu.
 2. Use `/console` to run the uninstaller in console mode, without the interactive UI. All the command-line parameters below will be ignored if the `/console` mode is not activated.
-3. Use `/vpn` to uninstall AdGuard VPN for Windows.
+3. Use `/vpn` to uninstall AdGuard for Windows. It should look like this:
+
+   `Adguard.UninstallUtility.exe /console /vpn`
+
 4. You can also use `/advanced` to force the uninstaller to run in *Advanced mode* and `/settings` to force the uninstaller to remove user settings along with the application.
+
+:::note
+
+The use of the parameters `/console` and `/vpn` is necessary for a successful uninstall. The parameters `/advanced` and `/settings` are optional.
+
+:::