System corruption by avast and dobreprogramy.pl

When installing a program from the dobreprogramy website, I did it through some weird installer where avast bought an ad

If you click next, next avast installs without warning
Even though I have another antivirus program, avast installed it causing a BSOD and now the system cannot be booted and repair options cannot be used
When will you stop this criminal practice of adding your program to other installers ?

Thank you for your quick response…

I had to have my computer serviced. Cost 200 pln ~50$ Installation system, drivers and basic configuration

Avast is no different from malware.