Downloading software from unofficial sources carries risks. Follow these steps to stay safe:
Ensure the catalog covers your specific market (e.g., "LHD" for Left-Hand Drive). Top Alternatives to Downloading Large Files
Never install raw EPC files directly on your main operating system. Run them inside a tool like VirtualBox.
Here is everything you need to know about what the Toyota EPC is, why you need it, and how to find a working version. What is the Toyota Electronic Parts Catalog (EPC)?
A great place to find older, "abandonware" versions of the catalog.