To move Avast program files

Avast Free Antivirus / Premium Security
1

I am obliged to install a new operating system (Windows 10) on my PC. How can I move my Avast antivirus PRO to the new installation???
Thanks för any help! H:B.

2
  1. Uninstall on old system.
  2. Reinstall on new system.
  3. Enter license.
  4. Reboot.
3

I have similar problem …
Upgraded to Win10 and found it (let’s just say) unsuitable
Tried to revert to Win7 and crashed Windows completely
In frustration, formatted drive and reinstalled Win7
Some software backups were not done properly including Avast
Can not find a way to reinstall Avast IS

4

Download Avast Internet Security: https://files.avast.com/iavs9x/avast_internet_security_setup.exe