I just started getting this error " avast! Net Service stopped working and was closed" after inserting my new license file. I have uninstalled Avast through add / remove programs, run the uninstaller and done everything I can think of just short of reinstall. I searched the forums but could not find a solution for this. I am running Vista ultimateSP 2. Any Ideas?
Most of the times when someone is having difficulty with an Antivirus ,that might be because of other things.
May I know which version of Avast product are you using ? Do you have any other Anti-Virus installed in this system (or were you using any other antivirus before Avast ?), if so what was it and how did you remove it (the vendor's uninstaller's tool or another way)?
Before you asking ,You should be know about the reason of this error and which platform i mean OS an its specification ,More over you should be idea of this error and what will be the causes .
Avast has its own removal utility at http://www.avast.com/uninstall-utility (preferable to be ran under Windows Safe Mode, just as the other specific removal utilities).
After that, try reinstalling the latest stable version of Avast and then reboot immediately after installation. Then test Avast for a few days and register again.