With development of economical society, cloud service plays an important role in this digital life. Google Drive, Dropbox, iCloud, OneDriver and other are used widely by people, we'd like to store our digital data here for backing up. Now taking an example for OneDriver. You May Like: How to Transfer Contacts from Blackberry to Samsung Galaxy? As a cloud storage and file hosting service, One Driver allows us to sync files and access them from web browser or mobile devices. Moreover, you can store your personal files like contacts to this place and back up contacts from any platforms to OneDriver with a Microsoft account, for example, from Windows to OneDrive. However, it's a never-ending task to sync contacts from Windows phone to OneDriver. So, in this guide, we would like to introduce you an effective way to simplify the process. Step 1. Find Settings List of the Email Accounts on Windows Phone Turn on your Windows phone. Scroll down the screen and tap "All apps". After the settings list is shown, scroll down to find "email + accounts" under the "accounts" list. Step 2. Sign in Outlook.com on Windows Phone Choose "email+accounts" and tap the option to "add an account". This allows you to set up email, contacts, and others. Then you can choose a mailbox type from the options listed. Hip "Outlook.com", which contains Outlook.com, Live.com, Hotmail.com, and MSN. Now, just enter the email address and the password to sign in. Step 3. Back Up Contacts from Windows Phone to OneDrive You will see the interface below in the next window, which shows you that it can automatically save your photos to OneDrive, sync your text messages and back up phone settings and app data. Click the button "yes". Your phone book in Windows phone will be backed up to OneDrive. Now you can sync your contacts from Windows Phone to outlook account with ease, and the Windows Phone contacts can be automatically synced to the Microsoft account that you have logged in to. In addition, with contact backup on OneDrive, you can download it and transfer contacts from Windows Phone to Android. On the other hand, are you looking for an awesome tool which can help you manage your phone data well? If yes, here is the best phone manager for you to add, delete or merge files as a bath on your phone.