* Firstly download your Avast Antivirus setup file from the following links and then save it to your computer where you want to * After downloading your setup file, you could easily compare its MD5 hash with the correct one using a third party MD5 checksum utility

* Now, verify the integrity- 1. You have to click the “Browse” button on the right and then launch the Avast antivirus setup file 2. Further, copy the suitable MD5 hash and then paste it into the Hash field and then click the “Verify” button * If a pop-up message indicates that the MD5 hash matches

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