Use the System File Checker tool to repair missing or corrupted system ...
Describes how to use the System File Checker tool to troubleshoot missing or corrupted system files in Windows 8.1, Windows 8, Windows 7 or Windows Vista.
Create and add an email signature in Outlook - Microsoft Support
How to create or edit your Outlook signature for email messages. Include your signature, text, images, electronic business card, and logo.
Applies To:
Outlook for Microsoft 365, Outlook 2021, Outlook 2019, Outlook 2016, Office for business, Office 365 Small Business, Microsoft 365 admin, Outlook on the web, Outlook.com, New Outlook for Windows, Outlook on the web for Exchange Server 2016, Outlook on the web for Exchange Server 2019
下载并安装或重新安装 Office 2019、Office 2016 或 Office 2013
了解如何在电脑上安装 Office 2013 或 Office for Mac 2011。
Applies To:
Office 2019, Office 2016, Office 2016 for Mac, Office 2013
Using IF with AND, OR, and NOT functions in Excel
How to use the IF function (combined with the AND, OR, and NOT functions) in Excel to make logical comparisons between given values.
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 Web App, Excel for Windows Phone 10
Which version of Windows operating system am I running?
Learn how to find which version of Windows operating system your PC is running and device specifications.
Update to the new Microsoft Edge - Microsoft Support
Experience the web in a whole new way by switching to the Microsoft Edge browser from Internet Explorer or Microsoft Edge Legacy. Move to Microsoft Edge
How to earn Microsoft Rewards points - Microsoft Support
Learn how to earn Microsoft Rewards points when you browse the web with Microsoft Edge, search on Bing.com, and more.
Applies To:
Microsoft account dashboard
Shut down, sleep, or hibernate your PC - Microsoft Support
Learn how to shut down, sleep, or hibernate your PC. When you’re ready to make your PC sleep, just press the power button on your desktop, tablet, or laptop, or close your laptop’s lid.
Windows 11, version 23H2 update history - Microsoft Support
Windows 11, version 23H2 ; July 25, 2024—KB5040527 (OS Builds 22621.3958 and 22631.3958) Preview; July 9, 2024—KB5040442 (OS Builds 22621.3880 and 22631.3880)
Como entrar no Hotmail - Suporte da Microsoft
O Hotmail agora está Outlook.com. Para entrar no Outlook.com e acessar sua conta de email do Outlook, Hotmail, Live ou MSN.
Applies To:
Outlook.com