Some notes for you here to help you deal with Porsche PIWIS PIWIS Tester II driver data is lost or you are told no driver after first-time PIWIS software installation issues.
Start your laptop
Go to the Porsche PIWIS menu
Then go to TOOLS->Online update
Click on the enter button in the top right corner
Porsche PIWIS tester driver data lost issues are solved! You can diagnose or program your Porsche cars then.