Same as before.
System hangs at end of install. Can move mouse, drag the installer window (but it leaves trails). ctrl-alt-del brings up expected dialogue box, but task manager won't start. Alternatively, a shutdown and reboot (instead of task manager) hangs. Hard reset only way out. Been like this for me since build 5.0.314 or the previous beta, if I recall correctly. No other AV, uninstalled, rebooted, new Avast removal utility run, rebooted, and then installed, so all was clean.
Freeze makes screenshot impossible...
I can run process explorer during install, but really don't know what I should be looking for.
Getting a bit tired of reporting this over and over with no resolution, to be honest.
Do you use MBAM real-time?
If so, uncheck the option to have it load at start-up.
Then reboot in safe mode, uninstall AVAST 5, reboot in normal mode and then reinstall it.
Does it work that time?
I had the same problem with build 377 and MBAM real-time was the "cause".
I'm now waiting after a working build before trying AVAST 5 again...
Seems they,re doing the same mistake ESET did when they released NOD32 v3.
Released too early.