Knowledgebase Windows Media Player reports "The source filter for this file could not be loaded". Home Article ID: 000053 Rating: 1.7 / 5.0 (63 votes) Problem Windows Media Player reports "The source filter for this file could not be loaded". Solution The cause of this error is yet unknown.. however, the problem can be solved by re-installing Windows Media Player. You can always download the latest version from http://windowsmedia.com/download Rating Did you find this article helpful? Yes No