Jason Roy and captain Joe Root both smashed centuries as the tourists easily reached their target of 361 with eight balls to spare in Barbados.
It was their highest ever run-chase in the format.
Chris Gayle's innings of 139 off 129 balls went in vain as the Windies' poor form in ODI cricket continued.
The second encounter of the five-match series will be played on Friday.
Cilic takes Agassi's tried and tested route to get back into winning form
Catching a millionaire Grand Slam champion in action on the second-tier Challenger Circuit is a rare sight, especially since cheering fans and creature comforts are in short supply when compared to the glitz and glamour of the main ATP Tour events.
US arrests, seeks to deport Mexican boxer Julio Cesar Chavez Jr
US immigration authorities have arrested Mexican boxer Julio Cesar Chavez Jr in Los Angeles and plan to deport him, just days after he lost a high-profile match to American rival Jake Paul.
England trail by 510 after Gill heroics and Indian pacers' early strike
England stumbled to 77-3 to trail India by 510 runs on day two of the second test at Edgbaston after skipper Shubman Gill scored a record-breaking 269 and their seamers struck early to put the tourists in a commanding position.
Djokovic and Rybakina ease into Wimbledon 3rd round
Seven-times Wimbledon champion Novak Djokovic showed that he remains a real threat for a record-extending 25th Grand Slam title at the age of 38 with a 6-3 6-2 6-0 second-round destruction of Britain's Dan Evans on Thursday.
Gill leads India's charge against England but Jadeja falls short of century
India dominated the opening session on day two of the second test against England on Thursday as skipper Shubman Gill put a price on his wicket to guide the tourists to 419-6 at lunch but Ravindra Jadeja fell short of a second century at Edgbaston.
The legendary Craig David joins The Kris Fade Show for an unforgettable chat!
The boys tried their 'pick up' lines on Mais Vault and things did not go according to plan...
Every weekend Kris Fade plays the biggest tracks in the Middle East. Check out this weeks chart...
One of the most talked about comedians in the world takes over The Kris Fade Show. Watch the full interview here...
