This is now the 5th time it’s stuck on it, tried to restart / repair.
btw your captcha is bloody annoying and near impossible to read.
Hi Daemoneyes, welcome to the forum 
You can always try the full installer for your version of Avast https://forum.avast.com/index.php?topic=182468.0
And the captcha is only there for the first three posts, just to stop the spambots 
Greetz, Red.
If installing the full installer over your current installation doesn’t fix your issue, try a clean install :
Download the Avast Uninstall Utility to your desktop.
Download the correct version of Avast.
Avast Free
Avast Pro
Avast Internet Security
Avast Premier
Disconnect from the internet.
Uninstall Avast via control panel.
Run the Uninstall Utility and accept the reboot to safe mode.
Once complete reboot your system.
Reinstall Avast.
Greetz, Red.
Neither of those is the help i expected to get here.
What help did you expect to get here?
You’ve given no details about your issue.
OS
Version of Avast
Other Security software installed
Details on attempts to resolve the issue…what have you attempted.