Can’t seem to find info…
… can all Avast! files in \Temp be deleted anytime?
If you are talking about C:\Documents and Settings\UserName\Local Settings\Temp_avast4_ folder, to all intents and purposes it should be empty ?
If it isn’t empty and has unpxxxxx.tmp files in there then you have experienced and error during scanning or some other error where the unpacked file remains in the folder. On successful completion of a scan the files are usually deleted.
However, you should be able to delete them, deleting the _avast4 folder itself though could cause a problem.
Deleting the TEMP files while a scan is running, however, is not recommended, of course.