paid avast update broke firewall - can't view pdf files

I have paid avast internet security. I updated as requested two days ago and since then I am unable to open pdf’s. When I checked as to why it is because the windows firewall says it isn’t running. When I tried to turn it on it said avast wouldn’t let it. So now I can’t open pdf’s.

What do I do?
Allanah

  • Which version of AIS…?
  • OS…? (32/64 Bit…? - which SP/Build…?)
  • Other security related software installed…?
  • Which AV(s) did you use before Avast…?

Repair Avast:
Control Panel> Program and Features (Add/remove program)>Select Avast> Select Repair. Reboot when completed
https://www.avast.com/faq.php?article=AVKB204

If Repair doesn’t fix the problem, try the following:
Clean Install of Avast:
https://goo.gl/4Ptzkf
If you need additional help with the Clean Install, watch this:
https://youtu.be/p-h3myRD51A