Risks of Improper Fixes

If you are seeing this message, it is usually because the software's automated date-changing tool failed to reset your system clock after closing or failed to set it correctly before opening. Manual Date Change Right-click the clock in your taskbar and select Adjust date/time Set time automatically and manually set the year to one year prior (e.g., if the current year is 2026, set it to 2025). Try launching WinOLS 4.7 again. Windows Time Sync

WinOLS uses date-based licensing (e.g., trial periods, update subscriptions, or hardware-locked licenses tied to a valid time range). If the system date is outside the expected window – or earlier than the last known valid session – the software assumes tampering (e.g., attempts to extend a trial) and blocks execution.