: Search for "Change date and time" in your Start Menu. Toggle "Set time automatically" to ON .
This error appears seemingly out of nowhere. One day, your software is running perfectly; the next, you are locked out of your projects, unable to open maps or save critical changes. This article provides a deep dive into why this error occurs, what it actually means, and—most importantly—how to fix it permanently. winols 4.7 your system date is wrong
Many versions of WinOLS 4.7 found online are configured to function only if the computer's system date is set to a specific historical window, such as January 10, 2021 Automatic Date Correction: Enable Automatic Time Sync : Search for "Change
Example 2 — Expired certificate:
Users of legacy versions often use "Time Stopper" utilities or manually set their PC date back to 2020 or 2021 before launching the app. However, this can disrupt web browsing and other system functions. One day, your software is running perfectly; the
. This is a common hurdle for users of older or non-official versions of the software. Common Causes Time Zone Mismatch
: Official support for older versions like 4.7 is limited. The current stable version is WinOLS 5.89 (as of April 2026), and upgrading often resolves these compatibility bugs. Advanced System Fixes If the clock is correct but the error persists: