: Follow on-screen instructions, agree to the terms, and use the default installation directory. Initial Configuration :
: 1920x1080 resolution minimum for detailed 2D, 3D, and hexadecimal map visualization Step-by-Step Installation Guide
: At least 300 MB of disk space for the software, plus additional space (SSD recommended) for projects. Installation Steps
If you need help resolving a specific error or configuring your project database, please share you see on your screen, your operating system version , and at what step the process fails . Share public link
Always right-click your WinOLS 4.7 shortcut and select to ensure the software has full read/write privileges to its database folders. Configuring Paths and Directories winols 47 install
WinOLS relies on checksum algorithms to ensure corrected files do not brick the ECU during flashing.
Create a dedicated folder on your main drive (e.g., C:\TunersTools\WinOLS ). Open > Virus & threat protection .
If you need help resolving a during the setup, want to know how to install DAMOS/A2L files , or need help configuring a J2534 Passthru device , let me know so I can provide the exact steps. Share public link
Extract the downloaded archive file (likely a .zip or .rar) using a program like WinRAR or 7-Zip. : Follow on-screen instructions, agree to the terms,
Many online discussions and tutorials focus on installing "worked" or modified versions of older WinOLS builds, particularly version 4.70. These methods are complex and often generate errors.
| Error | Cause | Solution | | :--- | :--- | :--- | | "Date turned back" or time-related issues | WinOLS leaves hidden files & registry keys to track installation history. | 1. Uninstall WinOLS. 2. Delete C:\ProgramData\EVC & C:\Users\Public\Documents\EVC . 3. Open Registry Editor ( regedit ), delete HKEY_CURRENT_USER\Software\EVC . | | Software stops working after a period of time | The software connected to EVC servers and was blocked. | 1. Perform the clean removal steps mentioned above. 2. Reinstall the software. 3. (outbound rule) before running it. | | Couldn't establish a secure connection (Error code 12057) | Incorrect PC date or outdated Windows version. | 1. Check that your PC's date & year are set correctly. 2. Ensure you are using an up-to-date version of Windows. | | Software crashes or fails to open immediately | Using a cracked release or missing DLL files. | Use a genuine licensed version to avoid instability. If using an older version, ensure all necessary DLL files are in the C:\Program Files\EVC\WinOLS\DLLs directory. |
: WinOLS requires specific checksum algorithms to correct the software signature before flashing the modified file back to the ECU. Ensure your relevant checksum modules (purchased from EVC or supplied with your tool chain) are active under Projects > Checksum .
If plugins do not work, reinstall the software or ensure the files are placed in the correct plugins directory. Share public link Always right-click your WinOLS 4
A clean environment prevents installation errors, database corruption, and hardware communication failures. Follow these pre-installation steps:
Reinstall the Microsoft Visual C++ Redistributable packages.
Better identification of maps (SVBL, Boost, Duration). Checksum Correction: Enhanced support for newer ECU types.