Create a desktop shortcut via RunAsDate to launch WinOLS with this virtual timestamp every time.
If you work in chip tuning and ECU remapping, EVC WinOLS is likely the backbone of your workshop. However, many users running WinOLS 4.7—particularly those using modified or untethered versions—frequently encounter a frustrating startup blocker:
If you're receiving a system date error when trying to run WinOLS 4.7, here's what you should know:
: Click the Change button under "Set the date and time manually." winols 47 your system date is wrong
When WinOLS is installed, it writes configuration files and registry keys to your system. If you attempt to reinstall the software after an error, a simple reinstall might not be enough. The software "remembers" the previous failed validation using leftover hidden files and registry keys, causing the new installation to fail in the same way.
WinOLS 4.7 is arguably the most stable and preferred version for many professional tuners using VAG/E DCU platforms. It offers excellent stability and a refined interface compared to older versions (like 2.24) or newer, buggy releases. However, for users operating cracked versions, the "Your system date is wrong" error is the single biggest frustration, turning a powerful tool into a non-functional liability.
Many tuners prefer isolating their software tools from their main operating system. Using a Virtual Machine solves configuration conflicts permanently. Create a desktop shortcut via RunAsDate to launch
If your date was incorrect, fixing it resolves ~20% of cases.
Click under "Set the date and time manually" and set the year back to 2021 .
The "Your system date is wrong" error in WinOLS 47 is a classic example of overzealous anti-piracy and time-stamp licensing colliding with real-world system configurations. For 90% of users, the solution is as simple as syncing their Windows clock or replacing a CMOS battery. For the remaining 10%—particularly those using modified versions—the solution involves registry cleaning, API redirection with tools like RunAsDate, or moving to a properly patched executable. If you attempt to reinstall the software after
Here are the most effective methods to resolve the date error, ranked from the easiest temporary fixes to permanent solutions. Fix 1: Manual Date Rollback (Temporary Fix)
Ensure and Set time zone automatically are toggled ON .