Have you ever made an account for something because you just kind of had to, only to immediately forget about it? If you have a Microsoft account that fits that pattern – and that includes Xbox accounts – you might want to give it a poke soon, because starting August 30, 2019, Microsoft will close any accounts which have been inactive for two years.
Source: N4G PC Xbox Live and other Microsoft accounts will soon be closed after 2 years of inactivity