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DATEDIF function - Microsoft Support
Argument. Description. start_date . Required. A date that represents the first, or starting date of a given period. Dates may be entered as text strings within quotation marks (for example, "2001/1/30"), as serial numbers (for example, 36921, which represents January 30, 2001, if you're using the 1900 date system), or as the results of other formulas or functions (for example, DATEVALUE("2001 ...
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, SharePoint Foundation 2010, SharePoint Server 2010, Windows SharePoint Services 3.0
Get the latest Windows update - Microsoft Support
To check for updates, select Start > Settings > Windows Update , then select Check for updates. If updates are available, you can choose to install them. Check for updates. If you run into problems updating your device, including problems with previous major updates, see common fixes at Troubleshoot problems updating Windows.
Windows help & learning
If you're a small business owner. Find the information you need to build, run, and grow your small business with Microsoft 365. Find help and how-to articles for Windows operating systems. Get support for Windows and learn about installation, updates, privacy, security and more.
Create a drop-down list - Microsoft Support
Select the cell in the worksheet where you want the drop-down list. Go to the Data tab on the Ribbon, and then Data Validation. Note: If you can’t select Data Validation, the worksheet might be protected or shared. Unlock specific areas of a protected workbook or stop sharing the worksheet, and then try step 3 again.
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
Import photos and videos from an iPhone to PC - Microsoft Support
Transfer photos from an iPhone to your PC. First, connect your iPhone to a PC with a USB cable that can transfer files. Turn your phone on and unlock it. Your PC can’t find the device if the device is locked. Select Import > From a USB device, then follow the instructions. You can pick the items you want to import and select where to save them.
Contact Us - Microsoft Support
Select the product you need help with. We'll show you self-help options first. Additional help is available if you need it, including live chat with a Microsoft specialist. Microsoft 365. Office. Windows. Xbox. Surface devices. Copilot.
Getting started with Microsoft Defender - Microsoft Support
To learn more about anti-malware see Getting started with anti-malware in Microsoft Defender. Tip: Stay up-to-date and install the latest updates on all your devices and apps (especially browsers) to help prevent malware. Microsoft Defender works alongside your existing antimalware solutions, even if they're made by other companies such as ...
Applies To: Microsoft Defender on Android, Microsoft Defender on iOS, Microsoft Defender on Mac, Microsoft Defender on Windows, Microsoft Defender Online
Lock or unlock specific areas of a protected worksheet
If prompted, enter the password to unprotect the worksheet. Select the whole worksheet by selecting Select All. On the Home tab, select the Font Settings popup launcher. You can also press Ctrl+Shift+F or Ctrl+1. In the Format Cells dialog box, select the Protection tab and uncheck the Locked box and then select OK.
Applies To: Excel for Microsoft 365, Excel 2021, Excel 2019, Excel 2016
How do I connect my Xbox controller to PC? | Xbox Support
On your PC, press the Start button , then choose Settings > Devices > Bluetooth & other devices (on Windows 11: Settings > Bluetooth & devices). Turn on Bluetooth. Select Add Bluetooth or other device > Bluetooth (on Windows 11: Add device). Your PC will begin searching for your controller.
Defragment your Windows 10 PC - Microsoft Support
Windows 10. Optimizing your drives can help your PC run smoother and boot up faster. To optimize them: Select the search bar on the taskbar and enter defrag. Select Defragment and Optimize Drives. Select the disk drive you want to optimize. Select the Optimize button.