July 30, 2015 5:10 am Microsoft's Clippy Brings Windows 10 to ‘Tonight' Jimmy Fallon gets a menacing visit from Microsoft Office assistant Clippy while talking about the Windows 10 launch. US & World Videos 2:03 Does Shakira still believe in love following Gerard Piqué split? 1:36 O.J. Simpson's cause of death revealed 25:57 WATCH: ‘Changing Climate' highlights the Philly-area residents who are combatting climate change 2:36 Super dad makes Mario-themed obstacle course for son's birthday 4:17 How the Philadelphia Union became the sustainability champs of the MLS