Australia's fourth win from five matches lifted it above New Zealand and England to lead the tournament halfway through its group stage matches.
David Warner returned to form with a brilliant century, and Pat Cummins and pace duo of Mitchell Starc shined with the ball to secure a third victory for Australia in World Cup 2019.
Starc himself delivered the coup de grace, claiming the first five-wicket haul of the tournament to derail West Indies' pursuit of 289 in Nottingham.
Mitchell Starc became the first bowler to take five wickets in the current edition of the World Cup.
Mitchell Starc took five wickets, while Steve Smith and Nathan Coulter-Nile made valuable contributions with the bat as Australia held Windies to register their second win of World Cup 2019.
Australia may have had a year to forget in 2018, but the side picked the form as the World Cup inched closer. With Steve Smith and David Warner back in the team, Australia are a force to reckon with.
While it is obvious that batsmen will find it relatively easy to score runs, the fielding captains will be looking at their strike bowlers to bring in new variety to outsmart the batsmen.
Starc filed a lawsuit in the Victorian County Court last week against the insurers of his lucrative deal to play for KKR.
Australian media reports on Friday revealed the breadth of the fracture between Warner and his teammates immediately after the ball-tampering scandal.
The fast bowler is likely to get a chance in the five-match ODI series against Pakistan to make his case stronger for the upcoming World Cup.
Head coach Justin Langer said he reached a mutual agreement with Saker, a former England bowling coach, that it was time for the pair to part ways.
Australia announced the team for the two-match T20I and five-match ODI series against India on Thursday.
Starc, who was voted player of the match for his second career 10-wicket haul in tests, was supported by Pat Cummins, who took 3-15.
Starc claimed his 10th five-wicket haul in tests by taking the final two Sri Lanka wickets in his first over after lunch.
Perera was to undergo a mandatory concussion test after he was unable to continue batting at Canberra's Manuka Oval.
The former three-time World Cup winning cricketer also slammed pacer Starc, who was at the non-striker's end, for not intervening.
India vs Australia, 3rd Test: Hosts Australia were 8/0 at stumps, trailing India (443/7 decl) in the first innings at the end of day two in Melbourne.
Kohli also received the backing of Australia coach and Test skipper Tim Paine himself, who said he relished his war of words with the combative Indian.
Mitchell Starc agreed that cracks opened up on the last two days but flat tracks which increasingly made cricket a batsmen's game would then be devoid of any contest.
Australia pacer Mitchell Starc opened up on Australia's winning combination and how the Aussie tailenders have done a brilliant job so far.