Avast Antivirus installation problem

I am unable to install Avast antivirus program on my computer system. Can anyone tell me installation and optimization of Avast antivirus?

Do I understand you right, you’re looking for Avast’s help?
Then please contact the people here:
https://forum.avast.com/index.php (Forum - Community)
or directly to Avast Support:
https://support.avast.com/

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