Delete the MSN account:
Click Help on any Hotmail page.
Type Close Account in the keyword search section of the Help screen.
Click the Close Your Hotmail Account tip within the Help screen.
Click the Close Account link that is highlighted in blue.
Click Close Account
Inactivate your MSN account: In this case all you need to do is stop using Hotmail. After 30 days your MSN account becomes inactive, and after 90 days the passport becomes inactive as well.
