The "WinOLS 47: Your system date is wrong verified" error can usually be resolved by correcting your system's date and time, ensuring WinOLS is up to date, and potentially adjusting how the software runs on your system. If you continue to experience issues, reaching out to WinOLS support or forums dedicated to ECU tuning and WinOLS might provide additional solutions tailored to your specific situation.
Fix "WinOLS 4.7 Your System Date is Wrong": Causes and Verified Solutions
If you are working with ECU remapping, encountering the "WinOLS 4.7 Your System Date is Wrong" error can bring your workflow to a grinding halt. This specific error message is common among users of modified or "unlocked" versions of WinOLS 4.7, though it can occasionally plague legitimate users with CMOS battery issues.
When this error appears, the software refuses to launch, claiming a discrepancy between your computer’s clock and the internal security timestamps of the application. Here is a comprehensive guide on why this happens and the verified ways to fix it. Why Does This Error Occur?
WinOLS is high-end professional software. To prevent unauthorized use, the developers (EVC) and various third-party "loaders" implement time-sensitive licensing. The error triggers when:
Subscription Expiry: The license associated with that specific build has reached its hardcoded end date.
CMOS Battery Failure: Your BIOS clock has reset to a default date (like 01/01/2000), causing a conflict with the software's last-run logs.
Time-Bomb Protection: Many versions of WinOLS 4.7 found online are "trial" versions modified to work for a specific window. Once that window closes, the software triggers the "System Date is Wrong" message. Verified Solutions to Fix the Error 1. The "Date Rollback" Method (Most Common Fix) winols 47 your system date is wrong verified
The simplest way to bypass this error is to trick the software into thinking it is still within its valid operational window. Step 1: Close WinOLS completely.
Step 2: Right-click your system clock in the Taskbar and select Adjust date/time. Step 3: Toggle "Set time automatically" to Off.
Step 4: Click "Change" under Set the date and time manually.
Step 5: Set the year back to 2021 or 2022 (the year the specific 4.7 build was released).
Step 6: Launch WinOLS. Once the program is open, you can usually set the time back to current, though some versions may crash if you do this. 2. Using "RunAsDate" (The Permanent Fix)
Constantly changing your system clock is annoying and breaks your web browser (SSL certificates fail if your date is wrong). To fix this, use a utility called RunAsDate by NirSoft. Step 1: Download and run the RunAsDate utility. Step 2: Browse and select the WinOLS.exe executable.
Step 3: Set the "Date/Time" in the utility to a date like January 1, 2022. The "WinOLS 47: Your system date is wrong
Step 4: Enter a name for a new desktop shortcut (e.g., "WinOLS Fixed"). Step 5: Click Create Desktop Shortcut.
Result: Use this new shortcut to launch WinOLS. It will "inject" the fake date into WinOLS while leaving your actual Windows system clock untouched. 3. Check for Virtual Machine (VM) Isolation
If you are running WinOLS 4.7 inside a Virtual Machine (VMware or VirtualBox), ensure that Time Sync is disabled.
In VMware settings, go to Options > VMware Tools and uncheck "Synchronize guest time with host."
Manually set the VM date to 2021. This prevents the VM from automatically updating the time from the internet and re-triggering the error. 4. Registry and Log Cleanup
Sometimes, even after changing the date, the software "remembers" that it saw a future date. Open Regedit (Windows Key + R, type regedit). Navigate to HKEY_CURRENT_USER\Software\EVC.
Look for subkeys related to "Version" or "InstallationDate" and delete them (Warning: Export a backup before deleting registry keys). If WinOLS attempts to verify the date/time online
Re-run the software using the RunAsDate method mentioned above. Important Considerations
While WinOLS 4.7 is a powerful tool for DPF, EGR, and Stage 1 tuning, using outdated or modified versions comes with risks. These versions are often unstable and lack the latest checksum updates required for newer ECUs (like MD1 or MG1).
If you are a professional tuner, the most "verified" fix is to upgrade to a genuine EVC WinOLS 5.x license. It eliminates "Date is Wrong" errors, provides official checksum support, and ensures you won't brick a customer's ECU due to a software glitch.
Summary: For the 4.7 version, the RunAsDate utility set to a 2021 timestamp remains the most reliable way to bypass the system date error without breaking your internet connection.
If WinOLS attempts to verify the date/time online or check a license server, your Antivirus or Firewall might block the connection, causing a timeout that results in a "date wrong" error.
Ensure you're using the latest version of WinOLS. Sometimes, updates include fixes for known bugs: