Windows 10 has Mail and Calendar apps already built in. Find them by selecting the Start button, or type Mail or Calendar in the search box on the taskbar.
If this is the first time you're opening either Mail or Calendar, follow the instructions on the Welcome page. Otherwise, do the following:
Step 1: In the Mail or Calendar app, select Settings at the lower left.
Step 2: Select Manage Accounts > Add account, choose an account, and then follow the instructions.
Your mail and calendar start syncing as soon as your account is set up. To add more accounts, return to Setting