Hmmm, are you sure this isn't a mix-up with old SZB..!?
Maybe, I can't say....
To do this, you would have to ask daan16 the exact name of the browser indicated when it says:
Why it installed on Windows XP despite it's not supported OS?
Again, my intervention (answer to daan only) was not to take formally ,by the exact name of the browser

...but to take in the sense that, if you uninstall the browser avast, ASB or SZB, it is no longer possible to re-install it.
Unless perhaps find an older version of the antivirus where the browser (SZB) was one of the integrated components.
I seem to remember that avast had left out the integrated browser for over a year.
Could you tell us which is the latest version of the antivirus that still offered the browser in its components?
With my XP, I can no longer re-install the browser with the latest avast version.
My advice being therefore not to do as I did, i.e. not to uninstall the browser under XP or Vista if we still want to use the few advantages still available of a
secure browser