Given the input sentence, please extract the subject and object containing a certain relation in the sentence according to the following relation types, in the format of "relation1: word1, word2; relation2: word3, word4". Relations include: product/material produced; manufacturer; distributed by; industry; position held; original broadcaster; owned by; founded by; distribution format; headquarters location; stock exchange; currency; parent organization; chief executive officer; director/manager; owner of; operator; member of; employer; chairperson; platform; subsidiary; legal form; publisher; developer; brand; business division; location of formation; creator.

The failure of Windows 8 to capture the public's imagination has left the Windows community deeply fractured, with 67 per cent of Windows users still using Windows 7, 13 per cent still using Windows XP and only 14 per cent using Windows 8, according to figures from Net Market Share , making it harder for businesses to support.

Answer: platform: Share, Windows; platform: Share, Windows XP