Install Avast IS on windows10 failure

Avast Free Antivirus / Premium Security
1

As titile…Please help!
I have tried compability mode of windows 7 but still fail.
Any ideas?

Thanks

2

I am running on Windows 10 pro 64 bit

3
  • W10 - which Build…?
  • Other security related software installed…?
  • Which AV(s) did you use before Avast…?