Hi,
I made a lote of changes in Windows Registry, but my Avast don't automatic update more...
What is happen?
Sorry my english...
Could you tell a little bit more about 'your changes in Windows Registry'?
Did you change the avast! keys?
Did you made an automatic cleaning?
If you use the REPAIR function (from Control Panel > avast Antivirus > Change > in the window that pop up, choose Repair) will avast! work?
If you desinstall and install avast! again, will it work?
To help you, we need a little bit more informations...