Company Profile

#1-PC Diagnostics Company is headquartered in a San Rafael, California, USA.

Our Mission Statement is to be the premier provider of high-quality diagnostic products and services for the personal computer service and support industry, and the PC user community.

Our flagship product, #1-TuffTEST-Pro™, has been the overwhelming choice of most of the world's largest service and support organizations since its release in 1984. These multi-vendor service companies typically have a headquarters-level evaluation staff operating in a well-equipped PC laboratory. Using known bad parts from their repair depot operations, they thoroughly test service tools, procedures, training modules, etc., for use within their organization, which, in most cases, has thousands of field service engineers.

#1-TuffTEST™ is the first diagnostic software products that will boot and automatically test the major hardware components of any Intel-based, or compatible, desktop personal computer. It is very inexpensive and is specifically designed for use by less experienced PC service/support technicians and PC users. The powerful and comprehensive tests that comprise #1-TuffTEST are derived from #1-TuffTEST-Pro, our industry-leading, professional-level diagnostic software product.

#1-TuffTEST for Windows Use #1-TuffTEST for Windows before taking your computer for costly repair. It rigorously test your PC and produces a comprehensive report on the overall view of your computer's health.