I installed Avast 5 last week and have had nothing but trouble since. This has manifested itself in frequent system freezes which required hard power down and restart. Also a restart was very slow taking up to 5 minutes to complete.
Eventually this was tracked down to a conflict with Sandboxie. After uninstalling Sandboxie the restart was still slow but now improved to about 3 minutes. After uninstalling Avast 5 everything returned to normal. Reinstalling Sandboxie had no effect on start up times.
I then installed Avast 4.8 and things are now back to normal.
It would seem that there are some serious issues with Avast 5 which need to be resolved before this can be considered a stable programme.
Running XP Pro, SP 3, Comodo, Malwarebytes on an AMD based processor with 2 Gb of RAM.
Then don’t disable it that is a suggestion not an order, your system, your choice, all I know is that this has resolved the problem for some. Me given the choice of avast 5 and no MBAM resident or 4.8 and MBAM resident, I’m afraid it would be avast5 and MBAM on-demand only every time as that I feel is a better level ov overall protection…
My problem now seems to be resolved although the cause is not apparent.
I did a reformat and re-install of XP, updated all patches from MS. Then installed Avast 5 and all my other programmes. Things seem to be running without conflict. Early days so will monitor reularly.