Avast Internet Security suddenly stopped working

[sandi149]

I noticed that the home screen on my Avast Internet Security, version 12.3.2280 says that I am "not protected" and that the background service is not running so when I click on "start now" it asks if I want to allow the app to make changes to the program, I click Yes, but nothing happens.  I also notice that in the settings it says that the connection is not established and current version unknown for the virus definitions. When I click on Update I get an error msg saying "failed to update, Avast service is not running"

I have no idea what happened as everything was working fine and now nothing seems to work at all.  The only thing that I can think of is I got a new router from my ISP.  Would that have anything to do with it?

Thanks for any help!
Sandi

[Eddy]

Perform a repair of avast.
If that doesn't solve it perform a clean installation of the latest avast version.

[Pondus]

avast FAQ  search and find   https://support.avast.com/support/home

reset avast   https://www.avast.com/faq.php?article=AVKB204#artTitle

[REDACTED]

Same exact problem. I left my laptop running last finish a download while I slept, and Windows performed a restart without my permission. Avast has been no working ever since. A repair did nothing to fix the problem, so I'm going to uninstall and redownload and reinstall.

[REDACTED]

FYI - the total reinstall worked. Not sure why Repair didn't, though.

[sandi149]

I first tried to repair but that didn't work so I did an uninstall and a reinstall and now it works!  Thanks for all your help!

[Ben2]

I tried all the above and I still have the problem where the Avast background services stop working. If this keeps up with no fix I will have no choice but to move to another anti-virus. That's sad as I like Avast.

[Asyn]

I tried all the above and I still have the problem where the Avast background services stop working. If this keeps up with no fix I will have no choice but to move to another anti-virus. That's sad as I like Avast.

Follow instructions: https://www.avast.com/faq.php?article=AVKB33#artTitle