Hello!
I have problem and I am 100% sure Avast! Internet Security 5 causes it. After Avast! uninstall and computer restart AIK works and after Avast! install AIK not working.
Problem: Windows Automated Installation Kit mount function not working properly and I get Error 31: a device attached to the system is not functioning. And I cannot edit mounted files.
Error:
I must get this:
I was trying turn off all Avast! modules, but it doesn't fix my problem.
What causes this problem and how solve this problem?
Edit: I test Avast! Pro and it has same problem BUT I have not problem with Avast! Free.