Please can someone help me when I turn off my desktop PC sometimes my web shield and mail sheild will stop and I have to turn them on when I turn my PC back on. I have a laptop with Avast security and don’t seem to have any problems with that so what is going wrong with my desktop? They are both Vista
Welcome to the forums, billie jean 
Have you tried a repair of avast?
To do a repair of avast :
Control panel > Add/remove programs > click once on avast to select it > click on Change/Remove > scroll down the left pane and click on repair > click OK> follow directions
Thank-you for that have done what you said so we will see how it goes. It doesn’t always turn itself off it hadn’t done it for a couple of days but then when I turned my PC on this morning it had turn itself off so I can to the forum and saw your reply so I will let you know if it was a sucsessful operation! THAHKS AGAIN.
Glad to help … let us know how it goes.
So far it seems to be working great Thanks again 
You are welcome!
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