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Welcome to Copilot on Windows - Microsoft Support
At Microsoft, we're guided by our AI principles, our Responsible AI Standard, and decades of research on AI, grounding, and privacy-preserving machine learning.Data privacy and security is a key principle of responsible AI. We aim to help our customers use our AI products responsibly, sharing our learnings, and building trust-based partnerships.
Change your two-step verification method and settings
After you set up your security verification methods for your work or school account, you can update the related details. Using the Security info page
Microsoft 365 help & learning
Protect your most important files, like your passport, driver’s license, or insurance information with OneDrive Personal Vault. Start using Personal Vault. Meet Microsoft Defender. Protect your digital life and all of your devices - Windows, Mac, iOS, or Android - so you and your family can have more peace of mind.
Applies To: Office 2021, Office 2021 for Mac, Office 2019, Office 2019 for Mac, Office 2016, Microsoft 365 for home, Microsoft 365 for Mac, Microsoft 365 for Windows
Dictate in Microsoft 365 - Microsoft Support
Dictation lets you use speech-to-text to author content in Office with a microphone and reliable internet connection. Use your voice to quickly create documents, emails, notes, presentations, or even slide notes.
Applies To: Word for Microsoft 365, Outlook for Microsoft 365, PowerPoint for Microsoft 365, Word for Microsoft 365 for Mac, PowerPoint for Microsoft 365 for Mac, Word for the web, OneNote for the web, Word for iPhone, Word for Android phones
打开或关闭 Microsoft Defender 防火墙 - Microsoft 支持
若要将其关闭,请将设置切换为“关闭”。 关闭 Microsoft Defender 防火墙可能会使设备(以及网络,如果有)更容易受到未经授权的访问。
Change the case of text - Microsoft Support
Unlike Microsoft Word, Microsoft Excel doesn't have a Change Case button for changing capitalization. However, you can use the UPPER, LOWER, or PROPER functions to automatically change the case of existing text to uppercase, lowercase, or proper case. Functions are just built-in formulas that are designed to accomplish specific tasks—in this case, converting text case.
Applies To: Excel for Microsoft 365, Excel for Microsoft 365 for Mac, Excel for the web, Excel 2021, Excel 2021 for Mac, Excel 2019, Excel 2019 for Mac, Excel 2016, Excel for iPad, Excel for iPhone, Excel for Android tablets, Excel for Android phones, Excel Mobile
Browse InPrivate in Microsoft Edge - Microsoft Support
The new Microsoft Edge will delete your browsing history, cookies, and site data, as well as passwords, addresses, and form data when you close all InPrivate windows. You can open an InPrivate window in different ways: Select and hold (right-click) the Microsoft Edge logo in the taskbar and select New InPrivate window.
Applies To: Microsoft account dashboard
Troubleshoot Surface Type Cover or Keyboard - Microsoft Support
You'll see the logo screen on your screen. Continue to hold the Volume Up button. Release the button when the UEFI screen appears. If you have a Windows Pro/Enterprise device (not a Windows Home device), you can then toggle off Type Cover port from the Devices menu and exit UEFI. Re-enter UEFI (press power + Volume Up) and toggle Type Cover port back on, then check if the Keyboard works in UEFI.
Create and add an email signature in Outlook.com or Outlook on the web
To get support in Outlook.com, click here or select Help on the menu bar and enter your query. If the self-help doesn't solve your problem, scroll down to Still need help? and select Yes.. To contact us in Outlook.com, you'll need to sign in.
Applies To: Outlook on the web, Outlook.com, Outlook on the web for Exchange Server 2016, Outlook on the web for Exchange Server 2019
Headers and footers in a worksheet - Microsoft Support
Instead of picking a built-in header or footer, you can choose a built-in element. Many elements (such as Page Number, File Name, and Current Date) are found on the ribbon.For worksheets, you can work with headers and footers in Page Layout view. For chart sheets or charts, you can work with headers and footers in the Page Setup dialog box.. Select the worksheet to which you want to add ...
Applies To: Excel for Microsoft 365, Excel 2021, Excel 2019, Excel 2016