Manually changing your system clock every time you want to tune a car is annoying and breaks your web browser (which requires the correct date for SSL certificates). Instead, use a utility called . Download the RunAsDate utility (it’s a small, free tool). Open it and select the WinOLS executable ( WinOLS.exe ). Set the "Date/Time" to a year like 2014 .

While the "System Date is Wrong" error is fixable, it is a symptom of using outdated software. Modern ECU files (especially for MD1, MG1, or EDC17 controllers) often require newer checksums and plugins found in .

Right-click the clock in your taskbar and select Ensure "Set time automatically" is turned ON.

Manually change the year to (common "safe" years for version 2.24).