My Avast Wont Open. If you can't open Avast, you need to start the Repair operation from the Control. If Avast won't open on Windows and you don't know how to deal with this situation.
Avast antivirus service is not working properly, which may also cause Avast not opening on Windows. Open Avast User Interface > Settings > Troubleshooting, and remove tick mark for 'Enable Avast self-defense module' and click 'OK'. But many times it happens that Avast inside doesn't work properly or in some cases, it doesn't even open properly.
Fix 'Avast Won't Update Virus Definitions' Issue.
And for that, you have to go to the.
In my PC i installed avast anivirus before many days. Andy: I successfully installed the free version of Avast for starters and scanned my MacBook Air hard disk and found some issues. Then you can contact avast antivirus customer.