Microsoft is further integrating Skype with the rest of Microsoft services by allowing you to use a single sign-in through a Microsoft account. Now instead of having separate login details, you can use your Skype Name to sign in and access other Microsoft services, including Xbox, Office, and OneDrive.
Recently, Microsoft made some changes to the look and feel of some Skype accounts, and successfully moved Skype from a peer-to-peer architecture to a more mobile-friendly cloud infrastructure with the help of Azure. Microsoft is looking to the future where you can have a single sign-in to access all Microsoft services without the need to remember separate login information, as all Skype Names are now also Microsoft accounts:
You may have recently noticed a few changes in the look and feel of your Skype account. We’ve been working to bring Skype and Microsoft closer together and are excited to announce that soon you will be able to use your Skype Name to sign into other Microsoft services like Xbox, Office and OneDrive. With a single sign-in (and an email address for certain services) you will soon be able to have fun on Xbox Live, access your photos and docs through OneDrive, check your email on Outlook.com, and connect with your friends and family on Skype.
As Skype continues to change, none of these changes will affect your ability to use Skype; you can still sign in using your Skype Name. However, in order to access all Microsoft services, an email address may be required. To stay up-to-date with the latest Skype features, be sure you have the latest version of Skype.
If you have the Windows 10 Anniversary Update, then Skype Preview is already installed.