Avast Antivirus error code 42125 is marked as the common issue which the user gets while using it on their devices. The problem occurs due to the zip archive files corrupt or network connection issue. The problem might look simple, yet it needs to get resolved at the earliest. To resolve the problem immediately, you need to look online to go through the available blogs and articles or contact the technicians at Avast Customer Number to get help immediately. If you are confused with the correct numbers, then you can visit the online directory called gethumanhelp.