HP Photosmart

Hi All,
My HP Photosmart won’t scan after I installed Avast. Advice would be greatly appreciated. When I attempt to scan, it just hangs up.
Thanks for any help.

Was anything detected on the first scan after installation or subsequent scans ?
What is the infected file name, where was it found e.g. (C:\windows\system32\infected-file-name.xxx) ?
Check the avast! Log Viewer (right click the avast ‘a’ icon), Warning section, this contains information on all avast detections. C:\Program Files\Alwil Software\Avast4\ashLogV.exe

Or the C:\Program Files\Alwil Software\Avast4\DATA\report\aswBoot.txt, open with notepad.

If so what action/s did you choose when they were detected ?