There is a simple way to stop all spam in your hotmail account, though it will also stop emails coming in from new people. As long as this is not a problem to you, follow these steps:

Log in and go to the options menu. Choose ‘More Options’ and under the ‘junk email’ section click filters and reporting.

In the ‘Choose a junk email filter’ select the Exclusive option. Under ‘Delete Junk email Tick ‘immediately ‘then click the Save button. Now the only emails you will get will be the ones from your contact list. Everything else will be sent to your junk email folder and it will be deleted immediately. Just make sure if you have new contacts, add them to the contacts list as soon as possible.