If your purchase of Office or Microsoft 365 came with a product key, you enter your product key on one of the websites listed below for your product. After you enter your key, you can download and install Office, or you can renew your Microsoft 365 subscription. Tip: Get tech expertise with Business Assist.

Sign in to your work or school account and then go to your My Account portal. Select Security info in the left menu or by using the link in the Security info pane. If you have already registered, you'll be prompted for two-factor verification. Then, select Add method in the Security info pane.

From the Overview page, select Office apps and on that page, find the Microsoft 365 product you want to install and select Install. To install Microsoft 365 in a different language, or to install the 64-bit version, use the dropdown to find more options. Choose the language and bit version you want, and then select Install.

Select Install (or depending on your version, Install apps> ). From the home page select Install apps (If you set a different start page, go to aka.ms/office-install .) For Microsoft 365 operated by 21 Vianet go to login.partner.microsoftonline.cn/account. For Microsoft 365 Germany go to portal.office.de/account.

If Update Options is missing and there's only the About button, you either have a volume license install or your company is using Group Policy to manage Office updates. Try Microsoft Update or contact your company help desk. To download an update manually, see Office Updates.

Get a digital ID. Find digital ID or digital signature services. About digital signatures and certificates in Office, and buying a digital certificate from a certificate authority or create your own.

Find your Office product key. Office 365 Office 2019 Office 2016 Office 2013. Many tasks for Office products don't require a product key because your Microsoft account takes care of them instead. Using product keys with Office.

As your points rack up, so do your opportunities to get rewards. We make it simple to track progress toward anything you’ve got your eye on, including games, movies, apps, gift cards, sweepstakes, donations to charity, and members-only offers and events. Get more details about earning points. How to earn points.

If you can't sign in to your Outlook.com, Hotmail, Live, or MSN email account, or you're not sure how to sign in or sign out, here are some solutions.

Signing certificate and certificate authority. Signing certificate To create a digital signature, you need a signing certificate, which proves identity. When you send a digitally-signed macro or document, you also send your certificate and public key.