Locate the config.ini or settings.xml file in the program root. Right-click the file and select .
How to Fix "Loading Data Failed. Check the Configuration File" in TecDoc Patched Locate the config
Before starting, ensure you log into your computer with an account. Turn off your internet connection during this process, as patched software often crashes when attempting to ping the official TecDoc licensing servers. 1. Verify and Edit the Configuration File Path Check the Configuration File" in TecDoc Patched Before
Ensure there are no spaces at the end of path lines. Verify and Edit the Configuration File Path Ensure
Microsoft's .NET framework update (KB5011048) can block older software patched with a "trial resetter," causing TecDoc to fail its license check at startup and throw the "loading data failed" error.
Create an outbound rule in Windows Firewall to completely block the TecDoc executable from communicating with the internet. This prevents the software from validating its configuration files online and breaking the patch.
Most TecDoc installations have a configuration file located in the installation folder (e.g., C:\Program Files\TecDoc\... ).