Tip: Many driver packages include a .reg file that you can simply right-click and "Merge" to do this automatically. How to set up Techstream in 2026 for your Toyota or Lexus

Navigate to HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\PassThruSupport.04.04 .

Right-click each device, select , and choose "Browse my computer for drivers."

Temporarily turn off security software, as many diagnostic drivers are incorrectly flagged as malware.