If the above steps don't work, the issue may be with the WinOLS installation itself.

If Windows shows the correct date but WinOLS still complains, your BIOS clock might be wrong. Windows reads BIOS on boot.

If you are using a legitimate license, the best course of action is to download the latest stable version of WinOLS 4 (v4.82) or upgrade to version 5 to avoid these legacy date checks. or finding the right CMOS battery for your machine?

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