After installing WinOLS, you may encounter a message indicating that the installation is complete and that you need to restart the application. This message typically appears when:
The message "Key completed. Please restart the app" typically appears during the initial registration of WinOLS when the software has successfully validated your customer credentials but requires a fresh session to apply the license privileges. Step-by-Step Installation & Registration Guide
Disclaimer: This guide assumes you are using a legitimate license purchased from EVC. winols install key completed restart app
Always download the latest version of WinOLS from the official EVC website (www.evc.de). Using outdated or unofficial versions increases the risk of bugs, security vulnerabilities, and compatibility issues. The official website also provides the complete instruction manual as a PDF download, which is an invaluable resource .
For the end user—an automotive tuner modifying diesel or gasoline ECUs—this message is not an error but a milestone. The installation of WinOLS is notoriously finicky. It often involves disabling antivirus software (which flags the dongle drivers as potential threats), running installers as administrator, and manually copying license files into hidden folders. Many tuners report spending hours troubleshooting “dongle not found” or “invalid key” errors. After installing WinOLS, you may encounter a message
: Install the winols_testversion.exe . Launch it once, then immediately close it without making any changes. Finalizing and Restarting
Close the app. Right-click the WinOLS shortcut and choose . Re-enter the key. "Error Start Process" The official website also provides the complete instruction
The sequence is the final, crucial step in unlocking your ECU tuning software. By following the steps—generating the key, applying it, and properly restarting the application—you ensure that WinOLS is correctly registered and fully functional for your tuning needs.