You need to update your Windows System.
You need to take care that the Windows Version you used, have installed the latest Root Certificates.
The reason for the error is the not installed SHA-2 (also named SHA256) root Certificate from Microsoft.
Without this certification, our software could not be installed (security reasons)
If you PC have NO internet connection, please download from a PC with Internet Connection the following files:
https://technet.microsoft.com/de-de/lib ... 33929.aspx (Deutsch)
https://technet.microsoft.com/en-us/lib ... 33929.aspx (Englisch)
and run this packages on the PC where you need to install the PE6.
After that, reboot your system and run the PCAN-Explorer 6 Setup again.
Technical Support Team