*** [Windows 7 freezing at welcome screen after password entered ] ***
(~SOLUTION FOUND~)
I just installed the new Avast and had the same problem as most people… I went into settings and just turned everything that looked like it had to do with booting to off. For example under SETTINGS go to the “Troubleshooting” menu on the left hand side of the settings window. There is an option called “Enable rootkit scan on system startup”… I disabled it. Also make sure the one below it “Enable raw disk access durring avast! boot-time scan” is also disabled. Under the “Basic” menu I turned on the Show welcome message on Windows boot screen (Windows 7 only). And…
!!Problem solved!! Boots just fine…
Hope this helps someone else let me know if it does!
-Justin ;D