Sometimes your outlook account or Microsoft account may be blocked.
The reason behind the blocking of Microsoft Account may be some unusual sign-in activities.
You can secure your account by having some antivirus: www.norton.com/setup
Blocking Microsoft Account is sometimes necessary to protect you from fraud or abuse.
But you can easily unblock your Microsoft Account with the following procedure:
For complete application visit office.com/setup
How to Unblock Outlook.com Account?
Go to Microsoft Account or office setup account
Sign in to your blocked Account.
Enter a phone number to receive a security code via text message or automated phone call.
If you don’t get the code, then
select I didn’t get a code when you’re prompted for a code at sign-in.
or I don’t have access to these when you’re resetting your password and then follow the instructions.
Enter the Security code.
Now you need to change your password to unblock outlook.
If you can’t Unblock your Outlook Account
If you still can’t unblock your account by entering the security code or changing your password, then visit : www.office.com/setup for getting help.
You can visit: office.com/setup