Sign in with Microsoft
Sign in or create an account.
Hello,
Select a different account.
You have multiple accounts
Choose the account you want to sign in with.
How to use the Camera app - Microsoft Support
If your PC has a built-in camera or a connected webcam, you can use the Camera app to take photos and videos. To find the Camera app, select Start > Camera.. Select any heading below.
Fix touchpad problems in Windows - Microsoft Support
If your touchpad isn’t working, it may be a result of a missing or out-of-date driver. Updating or reinstalling your touchpad drivers in Device Manager may help solve the problem. To open Device Manager, enter device manager in Search on the taskbar, then select Device Manager .
About the Microsoft Support and Recovery Assistant
Outlook won't start. I can't setup my Microsoft 365 email in Outlook. Outlook keeps asking for my password. Outlook keeps saying "Trying to connect..." or "Disconnected" Shared mailboxes or shared calendars don't work. I'm having problems with my calendar. Outlook stops responding. Outlook keeps crashing. I can't send, receive, or find email
Applies To: Outlook for Microsoft 365, Office 2021, Office 2019, Office 2016, Microsoft 365 for home, Microsoft 365 admin
修复 Windows 中的蓝牙问题 - Microsoft 支持
如果上述步骤都不能修复你的蓝牙问题,请使用 Windows 反馈中心报告错误。 这可帮助 Microsoft 确定此问题的根本原因。
How to use two-step verification with your Microsoft account
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.
Change your browser home page - Microsoft Support
On the General tab, under Home page, enter the URL of the site you want to set as a homepage.You can add more than one URL. Or, to add the site you're currently viewing, select Use current.If you add more than one URL, put each URL on its own line.
SUMIF function - Microsoft Support
sum_range Optional.The actual cells to add, if you want to add cells other than those specified in the range argument. If the sum_range argument is omitted, Excel adds the cells that are specified in the range argument (the same cells to which the criteria is applied).. Sum_range should be the same size and shape as range.If it isn't, performance may suffer, and the formula will sum a range of ...
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
Lock or unlock specific areas of a protected worksheet
Users can't sort ranges that contain locked cells on a protected worksheet, regardless of this setting. Use AutoFilter. Using the drop-down arrows to change the filter on ranges when AutoFilters are applied. Users cannot apply or remove AutoFilters on a protected worksheet, regardless of this setting. Use PivotTable reports
Applies To: Excel for Microsoft 365, Excel 2021, Excel 2019, Excel 2016
Look up values with VLOOKUP, INDEX, or MATCH - Microsoft Support
The fourth argument is empty, so the function returns an approximate match. If it didn't, you'd have to enter one of the values in columns C or D to get a result at all. When you're comfortable with VLOOKUP, the HLOOKUP function is equally easy to use. You enter the same arguments, but it searches in rows instead of columns.
Applies To: Excel for Microsoft 365, Excel for the web, Excel 2021, Excel 2019, Excel 2016
Get help with clipboard - Microsoft Support
Using clipboard. When you copy content on your PC, it’s automatically copied to your clipboard for you to paste. Not only can you paste multiple items from your clipboard history, but you can also pin the items you tend to use all the time and sync your clipboard history to the cloud.