To download directly to the desktop use IE and right click the links and select Save As.. You will then be able to specify the desktop as the target location
OK to remove and then reinstal Avast
Download the latest version to your desktop from
here Download aswClear from
hereGo to Programs and Features > add/remove and uninstall Avast
Reboot back to safe mode and run aswClear (select versions 6/7 of Avast ) once for each version, no need to reboot in between
After the last one reboot
Install the updated Avast
Just delete the combofix programme from where it is now the remaining folders are not a problem
Yes it can be transfered acroos on a flash drive and then copied to the desktop