If Windows syncs correctly but WinOLS still complains, the BIOS clock may be wrong.
If your computer consistently loses time or resets to a specific past date (e.g., January 1, 2000) after being powered off, your CMOS battery is likely dead. Experts Exchange How to FIX Incorrect Date and Time in Windows 11 winols your system date is wrong
This is for advanced users only and may violate your EULA. If Windows syncs correctly but WinOLS still complains,
The error is not a software bug but a deliberate security or integrity check. Primary causes include: 2000) after being powered off
The error is almost always a handshake issue between your hardware clock and the software’s security parameters. By syncing your time and ensuring your BIOS battery is healthy, you can usually get back to tuning in minutes.