click start menu/select run/type regedit
in search box/click on my computer to highlight it/on the menu at top of page click edit/scroll down to find and click it/type atlassolutions in the search box/
in the menu that appears you will see a folder named atlassolutions.com/
click on this and the values show up on the right side of the page/double click on each value shown and delete the values that show up in the box that comes up/
when you finish this go back to the folder atlassolutions in the left column right click on it and select delete
you will also see a folder above it named atdmt/
deleted its values in the same manner and then delete the atdmt folder.
open internet explorer/click on tools menu/internet options/ privacy/ sites / type in atdmt.com/then block to stop it reappearing.