According to the support page information,MicrosoftMicrosoft accounts that have not been used for more than two years will be deleted. Users must log in to the Microsoft account at least once every two years or Microsoft will delete the account without any warning notice. This new policy will take effect on August 30, 2019.
However, there are some exceptions to this new rule, and the following activities will also mark the user's account as active:
Buy. If you have used the Microsoft account to purchase, exchange, or access current Microsoft products or services, your Microsoft account will remain active and Microsoft will not close your account because it is not active. Please note that this does not apply to gift cards, certification or subscription-based purchases or services.
Subscribe. As long as you have a valid Microsoft subscription associated with the Microsoft account, your Microsoft account will remain active. After the subscription expires or terminates, you must log on to the Microsoft account at least once in two years to keep the account valid.
Microsoft Store. If you use a Microsoft account to publish an application or game (including game DLC) to Microsoft Store or register a Microsoft partner center account, your Microsoft account will remain active and Microsoft will not close your account because it is not active.
Certification. If you use the Microsoft account to obtain certification from Microsoft, your Microsoft account will remain active and Microsoft will not close your account because it is not active.
Account balance. As long as you have an unused balance in your Microsoft account (such as a Microsoft gift card or Microsoft credit card), your Microsoft account will remain valid. If you live in a jurisdiction where a gift card is considered "unclaimed property", Microsoft will pay the unused balance according to your Microsoft gift card under local law.
Accounts payable. As long as Microsoft has a financial connection to your Microsoft account, your Microsoft account will remain active (for example, Microsoft payment center arrears).
Family account. If you have an inactive Microsoft account that is authorized to share with underage accounts, Microsoft will not close your Microsoft account because of your inactivity. Your inactive Microsoft account will be kept open by Microsoft until the minor's account (i) is considered inactive and, (ii) is closed by Microsoft, or (iii) is converted to a standard Microsoft account when the minor reaches the desired age.
Legal requirements or other requirements provided by Microsoft. Despite the above provisions, Microsoft reserves the right to keep your account active or not to close an active account in accordance with applicable laws or regulations or other means provided to you by Microsoft.
Users can access the Microsoft Account Management website to view the activity status of Microsoft accounts. Your active status shows how often you log in to your account to prevent your account from being considered invalid. Please note that it may take up to thirty (30) days for recent purchases or other account activity to be reflected in your active status.
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