Avast high usage cpu

Hi guys

I use final version of avast internet security and update this suite. but high usage cpu .why?

avast settings is default .

http://s7.picofile.com/file/8239661318/2016_02_19_17_35_21.jpg

What exact OS/SP ?
What exact version of avast ?
Is there any other security (related) software installed ? (or was there)
Already performed a repair of avast ?
Already did a clean installation of the latest version ?

Hi my friend

my os windows 10 pro x64
Avast_2016_Internet_Security_v11.1.2253
no, avast is first suite installing.
no, i dont repair avast.
yes,avast installed clean

Did you use avastclear while performing the clean installation ?
Did you reboot a few times after installing ?
Is the usage normal if you have FireFox closed ?

I have the same problem.

Avast Internet Security 11.1.2253
Windows8-64bit
Intel i3-4170
8GB RAM

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

I had mentioned this problem several years ago while Avast changed its GUI design.

It caused to use high resource and high loading of PC indeed, even Avast did not accepted the comments.

After these few years, Avast SW became as like as bulky monster.
The big problem is that it makes the PC running slowly in old PC with lots of unuse function embedded.

I really hope Avast can listen our feedback.
Please focus on the Malware/ Virus detection and repair. Reduce the false positive problems rather than just intends for the fancy functions.

A custom install should help. :wink: