Pop up virus not detected by avast!

Viruses and worms
1

Hi,

I have recently been struck by a pop up virus. I have ads everywhere and my navigation is very slow. I ran a thorough scan yesterday, but it doesn’t find any virus.
How can I get rid of this annoying virus?

Thank you

2

Attach your basic logs. (MBAM, FRST and aswMBR…!!)
Instructions: https://forum.avast.com/index.php?topic=53253.0