

If you just downloaded the setup file of Avast from their website or an alternative download server such as or, but you received a message that the file is not a valid win32 application, when installing Avast. The install process of Avast! is straight-forward, but if you have a problem installing the program in Windows PC, try the possible solutions below and only use Avast removal tool as last resort of action. The setup of Avast comes with an uninstaller and repair utility that should help in fixing installations problem. What to Do If Avast Antivirus Won't Install?Īvast! Home edition from Alwil is a free antivirus protection for Windows, Linux, Mac and PDA.
