Your Outlook.com contacts are shared across SkyDrive, Messenger, Skype, and other Microsoft products and services. If you’ve accidently deleted or lost contacts in your Outlook.com contact list, you can restore them. Here's how:
Go to the Sign in page and enter your email address and password. If you’re already signed in, you'll go directly to the People page.
In the menu bar, click Manage, then click Restore deleted contacts.
Click Restore next to each contact that you want to restore, or click Restore all if you want all your deleted contacts to be restored.
Get more help with this issue
You can't restore contacts deleted more than 30 days ago.
Simple instructions for common tasks.Outlook.com basics
Need more help?
Ask your question in the community forums
Have ideas for Outlook.com?
Give us feedback
Can't get to Outlook.com?
Check service status
Think someone hacked your account?