High CPU usage

Just installed Avast Free on a laptop and Avast is constantly running at around 30% CPU usage.

Any other security program installed? Firewall? Antimalware?
How long is Avast running in your computer? All the offline scannings and the computer setup could take some hours in background.

I installed it 24 hours ago and the initial scan completed quite quickly.

I don’t have any other security software installed other than what comes as standard on Windows 10.

Please attach the Farbar logs (FRST.txt and Addition.txt) so we can see what else is running.
It can be that something that is running (in the background) is causing a lot of scanning.

Hello i have Avast edition 11.1.2253 trial i have uninstalled avast 3 times and installed it again with the same problem high cpu usage 30% avast service 32 bit. I formated the computer clean install windows 10 pro 64 bit clean install avast same problem.
Is there a solution ?
should i cancel my purchase ?
Thank you

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

Here is the fix for the Avast high CPU usage:

How to fix Avast Antivirus High CPU Usage

@ Snappy Phoenix

Wouldn’t it be better to find out if something else is the issue before jumping to a possible wrong conclusion?

Avast has also mentioned that what you’re recommending is not safe!
Please stop spreading this link. Thanks