Minimum 4 GB (8 GB recommended for handling large database structures)
Many tuning applications interact closely with system files, which can trigger false positives in security software.
Copy all files inside this directory (usually including files like loader.exe or specific .dll files).
: Supports 2D, 3D, and Hex/Decimal data views for precise map editing.
Download and install both the x86 and x64 versions of the Visual C++ Redistributable (2015–2022) directly from the official Microsoft website. Error: WinOLS Closes Immediately on Launch Winols 4.7 Install
Some distributions of WinOLS 4.7 are designed to run within a pre-configured virtual machine. This approach isolates the software from your main operating system, enhancing security and compatibility.
Turn off all antivirus software and Windows Defender, as they often flag the necessary activation files (patches) as malicious.
Corrupted configuration file or incompatible graphics driver.
If you encounter issues during installation, ensure that: Minimum 4 GB (8 GB recommended for handling
Keep the default installation folder unchanged (typically C:\Program Files (x86)\EVC ) to prevent file path errors.
Many users encounter issues during or after installation. Below is a table of common errors and their solutions.
Right-click winols_setup.exe (or the equivalent setup file). Select to prevent permission errors. Click Yes on the Windows User Account Control (UAC) prompt. Step 3: Navigate the Setup Wizard Select your preferred language and click OK . Read the license agreement carefully. Choose I accept the agreement and click Next .
: While modern versions are tested on hardware like the Dell XPS 15 , ensure your OS is updated to Windows 10 or 11 to avoid installation hangs at critical progress points. Download and install both the x86 and x64
Copy your purchased or licensed EVC checksum files ( .dll format) into the C:\Program Files (x86)\EVC\WinOLS\Dlls directory. Restart WinOLS.
Ensure that your specific ECU family (e.g., Bosch EDC17, Continental SID807) shows an active checksum status. Troubleshooting Common Installation Issues
Many modern versions of WinOLS 4.7 require folder replacement to properly apply patches and access advanced features. Follow these steps meticulously:
: SSD with at least 500 MB of free space for the software, plus additional room for project archives.
If your files are zipped (e.g., .zip or .rar ), extract them to a dedicated folder on your desktop using software like WinRAR or 7-Zip.
