Malware popup Chrome

The last few days, everytime i open Chrome, avast pops away every few minutes with a new ****.tmp file associated to chrome.exe and suggests a full restart and scan on boot, which i have done and the problem persist even as i type this popped up ‘bovmggf.tmp’

If i dont have the sound on and typing away i often hit return on the keyboard causing the pc to reboot…most frustrating

Ive used avast for silly years and dont wish to lose it, but this is getting silly

Ideas please
using windows 10 FYI

and how difficult is this verification image lol

Please post in the correct forum and provide the log files :
https://forum.avast.com/index.php?topic=53253.0