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One of the following security warnings appear: A program is trying to access e-mail address information stored in Outlook. If this is unexpected, click Deny and verify your antivirus software is up-to-date. A program is trying to send an e-mail message on your behalf.
If you see a notice to buy, renew, or reactivate your Microsoft 365 subscription when you open Word, Excel, or any other Office application, you'll need to take action in order to keep using Office.
A trusted location in Microsoft Office is a folder that contains files you trust to be safe. You should use a trusted location to store a file when you don't want that file to be checked by the Trust Center, or if you don't want it to open in Protected View.
If a Microsoft 365 application such as Word or Excel isn’t working correctly, sometimes restarting it will fix the problem. If that doesn’t work, you can try repairing it. When you’re done, you might need to restart your computer. The steps to access the repair tool vary depending on your operating system.
Can't sign in to Microsoft 365 desktop applications. To provide temporary relief, these steps may help: Rebooting the device often helps to mitigate the issue. Run the commandlets below in user mode PowerShell to repair WAM. For more context see the article, Authentication fails in Microsoft 365 services.
If prompted, choose Sign in and enter the Microsoft account email and password associated with your Microsoft 365 subscription. If your payment method shows an error, update it. After you update your payment information, try restarting Word. If you still see the error, continue to the next section.
If you recently installed an update and have McAfee antivirus installed on your PC, you may experience problems opening an Excel table, a MathType equation, or some other embedded object inserted in a Word document. STATUS: FIXED. This issue has been solved with WebAdvisor version 4.0.7.148.
Enable or disable macros in Office files. Change macro security settings in Excel. Learn what macro viruses are in Microsoft Office and how to protect yourself from them.
Activate Microsoft 365 or a non-subscription version of Office. When you start an Microsoft 365 app that's not activated, you'll be prompted to sign in to Microsoft 365. Be sure to sign in using the Microsoft account, or work or school account, that you used to buy or subscribe to Microsoft 365.
Fix Office activation error code 0x8004FC12 notification messages in Office applications after upgrading to Windows 10.
Enable or disable macros in Office files. Change macro security settings in Excel. Learn what macro viruses are in Microsoft Office and how to protect yourself from them.