It is highly recommended to use the default path: C:\Program Files (x86)\EVC\WinOLS .
The software will automatically check for updates. Restart after downloading these to ensure stability. ⚠️ Common Installation Issues
How to Install WinOLS 4.7: The Complete Step-by-Step Guide WinOLS is the industry-standard software for electronic control unit (ECU) tuning, remapping, and file modification. Version 4.7 introduces enhanced checksum calculations, stability improvements, and better database management.
Ensure all necessary Microsoft Visual C++ Redistributable packages are installed on your computer. winols 47 install
: Connect your EVC hardware dongle to a USB port. Launch the software, navigate to Help > Register , and input your customer number and activation key.
Solution: Disconnect the hardware device. Open , uninstall the malfunctioning controller, reconnect the hardware, and manually point Windows to the driver folder located inside the WinOLS directory.
Proper preparation prevents software conflicts and installation failures, especially when handling specialized automotive software. It is highly recommended to use the default
Following a clean installation process helps prevent common errors like missing DLL files or activation failures. Preparation
The installation wizard will guide you through the process.
Many modern ECUs (Bosch EDC17, MED17, Simos) require checksum correction. After , manually install the latest CRC_Plugin.pkg from your supplier. Copy it to Plugins\CRC folder. ⚠️ Common Installation Issues How to Install WinOLS 4
Extract the downloaded archive file (likely a .zip or .rar) using a program like WinRAR or 7-Zip.
: The wizard defaults to C:\Program Files (x86)\EVC\WinOLS . If you are utilizing an excluded directory for security reasons, click Browse , navigate to your custom excluded folder, and click Next .
Locate your official WinOLS 4.7 installation executable (typically named WinOLS_Setup_4.7.exe or similar).
Make sure you have installed the full plugin suite and that the OLS3.exe file was not quarantined by your antivirus.