Open the utility and browse to select the WinOLS.exe executable file.
Remember: Your system date is probably not wrong. But WinOLS thinks it is. Now you have the tools to prove the software otherwise.
The ultimate, permanent fix is to purchase an official license from EVC Electronic. Genuine versions receive continuous updates, cloud database access, and are entirely immune to system date errors.
Check the box that says .
Contrary to what the message literally says, The problem is not that Windows shows the wrong day of the week. Instead, the error indicates that WinOLS has detected a discrepancy in the chronological logic of your license or project files.
Click the button under the "Synchronize your clock" settings.
If your setup requires a frozen date, completely disable the Windows Time Service ( w32time ) via Windows Services ( services.msc ) to prevent background updates. winols+your+system+date+is+wrong
Many professional tuners run WinOLS inside a Virtual Machine (like VMware or VirtualBox). This allows you to isolate the software and keep the "System Date" of that VM static without affecting your main workstation.
The most innocent cause is a dead CMOS battery on your motherboard. When this battery dies, your computer loses track of time when powered off. If you boot up and the date has reset to 2000 or 2010, WinOLS will immediately flag this as an attempt to manipulate time.
Look at the bottom right corner of your taskbar. If the date resets every time you reboot your PC, your motherboard needs a new . Open the utility and browse to select the WinOLS
Move these files to your desktop as a backup, then relaunch WinOLS. The software will generate fresh, error-free configuration files upon startup.
If you are still having issues, it is highly recommended to contact EVC support directly, as it may indicate an issue with a registered license key. If you'd like, let me know: