Enable "Run as administrator" on the main launcher executable. To help isolate the exact breakdown, please let me know:
The message means the software can’t read its configuration file (usually config.ini , tec-doc.ini , or a similar .cfg file). Reasons include:
Did the error happen right after a or after moving files to a different drive?
Based on user reports and technical analysis, the following are some possible causes of the "Loading data failed, check the configuration file" error: Enable "Run as administrator" on the main launcher
Many repacks require the database files to be mounted on a specific virtual drive letter (usually L: , T: , or Z: ). If it’s mounted elsewhere, the loader fails.
The application may lack administrative privileges to read the configuration file or the database directory.
Follow these steps in order. Do not skip any; the solution is often simple but requires systematic checking. Based on user reports and technical analysis, the
: The error may occur if the software cannot establish a connection to the local database instance due to incorrect parameters or server restrictions.
Right-click the config file → → Uncheck Read-only → Apply.
Right-click the service, select , and change the Startup type to Automatic so it launches on every PC reboot. 5. Run with Elevated Privileges and Compatibility Mode Follow these steps in order
TecDoc repacks often dislike special characters or non-English letters. If your path contains é , ñ , ü , or spaces, rename the parent folders to simple ASCII (e.g., change TecDoc_Repack_v2 to TecDoc_Repack_v2 - actually spaces are bad too. Use underscores: TecDoc_Repack ).
Always check the documentation included with the repack download.
Repacks use high-ratio compression (like RAR, 7z, or custom installers). If the extraction process fails silently or is interrupted, critical database fragments remain missing.
Navigate to your TecDoc installation folder (usually C:\Program Files (x86)\TecDoc\ or C:\TecDoc\ ).