Certificate authority (CA) A certificate authority is an entity similar to a notary public.It issues digital certificates, signs certificates to verify their validity and tracks which certificates have been revoked or have expired.

Important: Workbook links are considered potentially unsafe and must be enabled when you open a formula workbook.When you open a formula workbook, click Enable Content in the Message Bar to allow the workbook links to function. If you don't, Excel keeps the most recent values and disables refreshing the links with values from the data workbook.

Safe senders and recipients. Safe senders are people and domains you always want to receive email messages from. Safe recipients are recipients that you don't want to block, usually groups that you’re a member of.

Important: Reassigning a combination of keys means that you can no longer use the combination for its original purpose.For example, pressing CTRL+B changes selected text to bold. If you reassign CTRL+B to a new command or other item, you will not be able to make text bold by pressing CTRL+B unless you restore the keyboard shortcut assignments to their original settings by selecting Reset All ...

In the following countries, you have the right to cancel a subscription that has recurring billing with immediate effect and receive a prorated refund as described in the Microsoft Consumer Subscription Prorated Refund Policy:

Depending on the length of the video, generating closed captions can take several minutes. Once generated, you can watch the video in Stream and have captions displayed at the bottom of the screen.. When the caption have been created, the Generate button turns to Translate.Select Translate to change the spoken or screen language to automatically translate the captions.

List view. A unique feature of the Tasks app how it displays tasks and information associated with them in rows and columns. This is called List view, and allows you to change many tasks at once, which wasn't as possible in either To Do or Planner before.

Important: If you turn on two-step verification, you will always need two forms of identification.This means that if you forget your password, you need two contact methods. Or if you lose your contact method, your password alone won't get you back into your account—and it can take you 30 days to regain access.

Learn more. Fix problems with apps from Microsoft Store. Manage your purchases from the Microsoft Store. Need more help? Contact Support. For technical support, go to Contact Microsoft Support, enter your problem and select Get Help.If you still need help, select Contact Support to be routed to the best support option.

Windows 10 . Select the Start button, type Programs and select Add or remove programs in the list of results.. Under Apps & features, find and select Microsoft OneDrive, and then select Uninstall.. If you don't see OneDrive in the list, press the Windows key and R to open a Run dialog, then type appwiz.cpl and press OK.