Verify internet time sync (NTP)
Caution: Only do this if you have backed up your project files ( .ols ). 4. Registry Cleanup (Advanced Users)
Ensure the software is installed in a direct path, such as C:\EVC\WinOLS\ , rather than deep within nested folders, which can cause permissions issues. Pro-Tips for Long-Term Use winols 4.7 your system date is wrong
On older tuning laptops, a dying motherboard battery can cause the BIOS time to reset to a default year (like 2000 or 2005) every time the laptop loses power. How to Fix the "System Date is Wrong" Error 1. Synchronize with Internet Time The simplest fix is often the most effective.
This article explores why this happens, how to troubleshoot it, and the potential solutions to get back to tuning. What is the WinOLS 4.7 "System Date is Wrong" Error? Verify internet time sync (NTP) Caution: Only do
Because of its power, WinOLS is the tool of choice for many professional tuners, but it is also a prime target for unauthorized distribution. This leads to the widespread appearance of time‑related errors.
This small coin-cell battery (usually a ) maintains the system clock while the PC is off. Pro-Tips for Long-Term Use On older tuning laptops,
In the "Date/Time" section, select a fixed past date (e.g., January 1, 2021).
: Click the Sync now button under "Synchronize your clock" to force an immediate update from the Windows time servers. 2. Check the Windows Time Service
Modified versions often fail to calculate checksums correctly, potentially bricking the Engine Control Unit (ECU).
Some recent cracked builds of WinOLS 4.7 (e.g., version 4.70.01) genuinely remove the date check and do not require a virtual machine or date adjustment. The vendor claims: “The main advantage of this build is that it does not require a virtual machine (VM) and there is no need to change the system date to run it.”