After running Rkill and scanning with Malwarbytes (found and removed 5 issues), MS Office programs will not open from desktop icons. Kaspersky also will not open but, when clicked, a box appears asking with which program it should opened. On some other machines I have been able to System Restore, but this machine will not restore. Have also used http://www.dougknox..../file_assoc.htm to get programs to work but it did not work here. Dell Latitude D531 is the computer in question.