Turn your PC off completely. To shut down, select Start and then select Power > Shut down.. Sleep. Sleep uses very little power, your PC starts up faster, and you’re instantly back to where you left off.

Using Authenticator as a way to sign in. If you have turned on passwordless, two-step, or multi-factor authentication for your account, use the following steps to sign-in:

1. Sign in with your Microsoft account. You will be prompted to Sign in with Microsoft account. If you have an existing Microsoft account on your mobile device then you will be asked to confirm your account, then click Continue.. If you don't have an existing Microsoft account on your mobile device then you will be asked to sign into your account or create a new one, then click Continue.

Click a template to see a preview. Click the arrows on the side of the preview to see more templates.

When you back up your files, apps, and settings in the cloud using your Microsoft account, you get 5 GB of free cloud storage and other benefits that protect your files with the latest security and make everyday tasks easier.

In the Add-Ins dialog box, select the check boxes the add-ins that you want to use, and then click OK. If Excel displays a message that states it can't run this add-in and prompts you to install it, click Yes to install the add-ins. For more information about how to use add-ins, see Add or remove add-ins.

Many tasks for Office products don't require a product key because your Microsoft account takes care of them instead.

To change the default app, you can do either of the following: Set a default for a file type or link type In the search bar, enter the file type or link type you want, then select it from the list of results.

Billing & payments. Your dashboard is also where you can: Buy, renew, or cancel a subscription.

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