whenever i right click on any file, theres a huge delay of at least 30 secs. so whenever i need to work with file i had to shut off avast. please help. previous version is fine. note if select multiple file, the task cant be done… it just hang :-\
Which avast…??
Which version…??
OS…??
A previous topic similar to this might help you (or might not).
Avast version 6.0.1203
windows XP service pack3
help 
tried all there except defrag.
A defrag on XP works wonders. 
Well, I wasn’t really talking about “all there”. I was talking more about a clean full UNinstall (including the clear uninstall utility of Avast ran from Safe Mode). In theory, it shouldn’t make any difference, while in practice, there is at least a little chance that it might help. As you can see in that topic, it helps for “some” users.
About defrag, although it is possible to get some improvements from it, a “normal common” system would not get “that much” gains. If your system is not targeted to “newest generation games”, and you have enough free space in the system partition, you may try a simple defrag to check if it helps. For other situations (like for example less than 30% of free disk space in your system partition), your problem might be more related to HDD and filesystem performance under those conditions. In the long run, you would need enough free space for Windows (with any resident antivirus) to work as expected.
Changing or tweaking Avast’s settings might give you some improvement too (maybe, the cache-related settings and which operations (open, run, read, list, write…) Avast checks).
The amount of available free RAM might have also a role.
Finally, if the menu takes some time to open the first time after a (re)boot, but it takes less time to open the SAME menu the next time (with NO reboot in between), this is more normal in Windows.
One additional thing you could try is to download a previous stable version, uninstall you current 6.0.1203, reboot, and install the previous release (that you know used to work for you).
For the Free Stable editions of Avast, you can download previous releases from http://www.filehippo.com and look at the right panel of Avast downloads of previous versions.
Apply patch ap2011-17-07-002: http://public.avast.com/~kurtin/patches/#ap20111707002
Solved…??
just updated, been busy, now my comp run with 90% time avast turned off ;(
I would say try the latest beta http://forum.avast.com/index.php?topic=83583.msg681051#msg681051 its fixed alot of problem’s, also have you changed any of the default scan settings in file system shield, like for example have you ticked scan all files ? if you did tick scan all files that will have a serious impact on your systems performance.
scan all files are not ticked… just update the fix and now avast will not start, neither will update virus and engine run. sigh, i will uninstall and install the new one…avast is not the same as before… :-X
i apply the patch and now avast program would not run, update also. i still prefer the old avast 
I’m facing the same experience.
Right clicking a file is much more slow now with the avast latest beta than it was some days ago…
Then download the new beta from the link i supplied and the removal tool http://files.avast.com/files/eng/aswclear.exe and save then delet avast via remove programs and reboot into safe mode and run the removal tool and reboot back into normal mode then install the new beta.
No slow downs for me, i just tested on the nvida file, right click and scan of 730 meg in 18 seconds.
Well… I’m always with the latest beta :
My answer wasn’t directed at you Tech sorry.
go safe mode, uninstall all including the patch using aswclear.exe, restart and install a clean avast latest beta as above…walla, now my problem is solved, right click any file within 3 secs, good job craigb and avast ;D ;D ;D
Happy to hear it’s fixed