Whenever you close a Microsoft account, whether since you never again need it or in light of the fact that it's a copy account, Microsoft needs to ensure two things.
To begin with, that it's truly you, not another person attempting to close your record.
Second, that you're not leaving anything significant behind that you will require later.
To safeguard your record from inadvertently being shut, we might request that you demonstrate your personality and goal. For instance, on the off chance that you failed to remember your record data and needed to reset your security information, we make you stand by 60 days prior to shutting your record. How to delete Microsoft Account
To close your Microsoft account, click the things beneath for things to really look from the outset, how to close it, and what to do thereafter
To close your account
Go to Close your account.
When you're prompted to sign in to your account, double-check that it's the account you want to delete. If not, select Sign in with a different Microsoft account. If you're having trouble signing in to the account you want to close, see When you can't sign in to your Microsoft account for help fixing the problem.
Check that the page shows the correct Microsoft account, and then select Next.
Read the list, and select the checkboxes to acknowledge you’ve read each item.
In the Select a reason drop-down list, choose the reason you're closing the account.
Select Mark account for closure.
This May Help,
Peter