Avast 7.0.1426 very often crash on several configurations. Blue screen and aswsnx.sys is always involved. I change my antivirus until the problem is resolved because it is impossible to work / play / surf … without a crash
Well, it seems that aswsnx.sys crash was due to nvidia drivers.
To solve this problem, install Avast before installing the nvidia drivers.
I test again this solution and I tell you if the problem is solved
What version NVidia Drivers are you running? iv got no problems with the current 296.10 but the previous drivers were causing crash problems when using internet explorer and also automatically dimming the screen.
My problems came with the update 296.10. I did a fresh install and I had the same problems. For example my pc crash when the pop up Sandboxie appeared and I had a blue screen with aswsnx.sys who was implicated. So I uninstalled avast and installed another antivirus and blue screen telling me that the error had now nv4_disp. So I uninstalled antivirus and nvidia drivers and I reinstalled Avast first and then the drivers. Since it seems that the problem is solved. Wait and see 
can you please send me the latest minidump file? (\Window\minidump folder), thanks.
ok but can I send the dmp file directly to your email address because I do not see how from the site ?
deleted
send
Yes, it seems it’s a nvidia driver problem. Please update graphics drivers and check your hw components (cpu temperature, dust in PC, etc). This crash has nothing to do with avast.
yes it is my conclusion but I had already posted my topic.
This is why I gave the solution that I’ve found to fix the problem. My pc is stable since I reinstalled in this way
I apologize for my broken English. I’m french man
Thanks to everyone who answered to my problem