I paid for Avast Internet Security, but I have Avast free (Avast5, Alwil Software) installed too. Can I uninstall Avast free (I try once but don´t work)… so Can I delete the Alwil folders and clean the windows registry manually without have any problem? Thanks
You can use this cleaner from avast: https://www.avast.com/uninstall-utility
Woooo! Version 5 dates back from at least 2014, maybe earlier than that.
Follow instructions and place avastclear.exe on an administrator desktop. Double-click and yes to enter safe mode. Select ALWIL folders first reboot. Uninstall AIS via programs and features - reboot. Run avastclear again, safe mode again, and select default folders for AIS - reboot.
Install AIS again and reboot.
Goes without saying to backup with an image in case of disaster first; best to leave registry alone unless you really know what you are doing in there.
In case you’ve run other a/v’s in the past: https://support.avast.com/en-ww/article/11/#artTitle