Here in this discussion. I am here to support you with some of basic steps to solve the problem of avast isn't opening on Windows 10 and how you can easily fix these issue in... moreHere in this discussion. I am here to support you with some of basic steps to solve the problem of avast isn't opening on Windows 10 and how you can easily fix these issue in two minutes of time. So let's start!!1) Click Windows + R2) Type %temp%3) Delete all the temporory files open4) Restart your PC