salve, ho installato Windows Vista, ma il problema é che la protezione da virus non viene riconosciuta anche con avast installato.
mi potete aiutare?
ok thx, translation: 
hi, I have installed Windows Vista, but the problem is that the protection from virus does not come recognized also with avast installed. can you help me?
This is an English-only forum. Sorry.
If you can use an automated translator.
As far I could understand Italian, I could ask you:
there is an Italian forum for avast? i’m sorry for my disgusting english… 
Unfortunatelly not… but can’t you at least try to? Your English is not that bad…
do you mean that vista does not recognize that avast is the anti-virus installed on your computer ???
i have vista ultimate on mine and no problem :o
before the backup of my pc, avast was recognizite by Vista
but after i had a problem with the graphic card and when the problem was resoult, i installed again avast and i have this problem.
now i try to disinstal avast and reinstal and i see waths appens…
Although this was an XP related fix, it has worked for Vista also.
Windows Security Center not recognising avast!
Check this - Solution when Windows Security Center does not recognize antivirus or firewall
Did anybody test this on Vista? I’ve posted on my XP experience and I did not test it on Vista…
Seems that it should work, but it will be good to have an official (experimental) answer for this…
I know of at least one that has tried that fix and it worked.