Microsoft Corp. v. Manning

OPINION

CORNELIUS, Justice.

This is an appeal of the trial court’s order granting class certification to a suit by appel-lees against Microsoft Corporation for breach of express and implied warranty, unjust enrichment, and violations of the Magnuson-Moss Warranty — Federal Trade Commission Improvement Act and the Washington state Consumer Protection Act.

Microsoft contends that the district court abused its discretion in certifying the class because: the claims are founded on an unrecognized liability theory; the certification will result in improper claim splitting; the appel-lees do not meet…