system
1
hi everyone:
the avast8 can not install in win8.1
The program compatibility assistant detects known compatibility issues in this programs.
CraigB
2
Which version of avast have you tried to install? the 8.0.1496 B3 should work http://forum.avast.com/index.php?topic=131804.0 also it would be best to do a clean install by removing the currently installed version with the aswclear removal tool http://www.avast.com/en-us/uninstall-utility