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Get help with Windows activation errors - Microsoft Support
Select Start > Settings > System > Activation . Select Change product key, and then enter the 25-character product key. Open Activation settings. If you've made a major change to your device's hardware, such as a motherboard replacement, run the Windows Activation troubleshooter located on the activation settings page.
Keyboard shortcuts in Windows - Microsoft Support
Text editing shortcuts. Dialog box shortcuts. Virtual Desktop shortcuts. File Explorer shortcuts. Command prompt shortcuts. Taskbar shortcuts. Copy, paste and other basic shortcuts. Select the option (s) below to see the list of associated shortcuts.
Fix common Surface problems using the Surface app and Surface ...
Run the Surface Diagnostic Toolkit. Select Start , search for Surface Diagnostic Toolkit, then select it in the list of results. If it's not already installed, you can download it from Microsoft Store. Get the Surface Diagnostic Toolkit. Follow the on-screen instructions in the Surface Diagnostic Toolkit. The diagnosis and repair time usually ...
Can I upgrade to Windows 11? - Microsoft Support
Communities help you ask and answer questions, give feedback, and hear from experts with rich knowledge.
Change from a local account to a Microsoft account
The main difference between a local account and a Microsoft account is that a local account is specific to one device, while a Microsoft account can be used across multiple devices and Microsoft services. A local account is created on the device and doesn't require Internet connectivity to sign in. It's independent of other services, and it's ...
Command-line switches for Microsoft Office products
Using a command-line switch doesn't mean you have to type the whole startup command at the command prompt. You can start the Office app as usual, by clicking the program icon on the desktop, or by clicking the program name on the Start menu. All startup methods essentially do the same thing: they run the app's .exe file, even if you don't actually type the command or even see it.
Applies To: Excel for Microsoft 365, Word for Microsoft 365, Outlook for Microsoft 365, PowerPoint for Microsoft 365, Access for Microsoft 365, Excel 2021, Word 2021, Outlook 2021, PowerPoint 2021, Access 2021, Excel 2019, Word 2019, Outlook 2019, PowerPoint 2019, Access 2019, Excel 2016, Word 2016, Outlook 2016, PowerPoint 2016, Access 2016, Outlook 2013
I can't send or receive messages in Outlook - Microsoft Support
In the search box, type outlook.exe /safe, then press Enter. For more information on creating a new email profile, see Create an Outlook profile. Run the Inbox Repair Tool. For many types of email accounts, Outlook stores your messages in a Personal Folders File (.pst file). You can repair this file by running the Inbox Repair Tool.
Applies To: Outlook for Microsoft 365, Outlook 2021, Outlook 2019, Outlook 2016, Outlook 2013, Microsoft 365 admin
Share SharePoint files or folders - Microsoft Support
On your SharePoint site, go to the library where you want to share files. Pick the file or folder you want to share by selecting its circle icon. Note: Sharing multiple items at the same time is not available. Instead, you can add the things you'd like to share to a folder and then share the folder.
Applies To: SharePoint Server Subscription Edition, SharePoint Server 2019, SharePoint in Microsoft 365, Office for business, Office 365 Small Business, Microsoft 365 admin, Office 365 operated by 21Vianet, Office 365 operated by 21Vianet - Small Business Admin, Office 365 operated by 21Vianet - Admin, SharePoint in Microsoft 365 Small Business, SharePoint operated by 21Vianet
INDEX function - Microsoft Support
Syntax. INDEX (array, row_num, [column_num]) The array form of the INDEX function has the following arguments: array Required. A range of cells or an array constant. If array contains only one row or column, the corresponding row_num or column_num argument is optional. If array has more than one row and more than one column, and only row_num or ...
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
Set up and use Outlook - Microsoft Support
Enter your Microsoft 365 email address, and then select Connect. Enter any additional email addresses that you want to use and then select Next. After all your accounts have been added, choose if you want to set up Outlook mobile or wait until later. Select Done. It can take several minutes for Outlook to download your email and other data.