Managing personal Outlook.com account settings, security, and privacy
Hello,
Using a government-issued photo ID may sound like a simple way to prove ownership, but it would not reliably prove that someone owns a particular Microsoft account.
Microsoft accounts can be created with nicknames, aliases, old email addresses, or names that do not match a person's legal name. A photo ID could prove a person's real-world identity, but it would not prove that the Microsoft account belongs to that person.
It would also require Microsoft to collect, verify, store, and protect highly sensitive identity documents from users around the world, while dealing with different types of identification and different privacy laws.
For security reasons, Microsoft therefore relies on information already associated with the account, such as recovery email addresses, authentication methods, passwords, previous account activity, and information submitted through the account recovery process.
Allowing support staff to bypass those verification methods simply because someone provides an ID could actually create another way for accounts to be taken over. It is simply not feasible.