"To help protect your Microsoft account from fraud or abuse, we temporarily block it when we detect spam or other fraudulent activity.
Unblock your account online
You can unblock your account from your PC. Here's how:
Contact support to unblock your account
- Go to https://account.live.com.
- Sign in to your blocked account.
- Follow the instructions on the page.
If you can't verify your account online, contact support.
Once your account is unblocked, add a phone number to your account in case you need to verify it in the future.
Other reasons why your account might be blocked
There might be an issue on our end. You haven't lost any email, but we'll need to get your account info to resolve the problem. Get more help with this issue."I don't know about the first method since I'm sure the users are already trying that.