I have the same problem, windows doesn't start because aswrvrt.sys, I don't know how but I succesfully start in a safe mode the the pc and I unistalled Avast but the pc is still stuck at the start screen.
Now it seems that the problem is the classpnp.sys.
Here enlcosed I attach the frst.txt file, seems that I get a malware...
Please could you tell me how to fix it without loosing everything?
thank you,
Vito