Before trying technical workarounds, ensure your time is actually correct.
Sometimes WinOLS stores a "last run" date in its configuration files. If your clock accidentally jumped forward once, WinOLS might "remember" that future date and refuse to run on the "older" current date. Navigate to your WinOLS installation folder or %AppData% . Look for .cfg or .ini files. winols your system date is wrong better
“Just set your system date back to 2018 or 2020 and reopen WinOLS.” Before trying technical workarounds, ensure your time is
Right-click the clock in your taskbar and select . Navigate to your WinOLS installation folder or %AppData%
This usually appears when:
Tip : If synchronization fails, try changing the server to time.apple.com or time.nist.gov in the Control Panel's Internet Time settings. :
Note: Be careful here; deleting the wrong file can de-register your license. How to Prevent This Error in the Future