Learn how to locate your Microsoft Office product key, which allows you to activate and use your Office products without requiring a Microsoft account.

Cookies are small pieces of data stored on your device by websites you visit. They serve various purposes, such as remembering login credentials, site preferences, and tracking user behavior.

Learn how to remove malware from your PC. Use Microsoft Defender Antivirus in Windows 10 or Windows 11 to scan your PC for malware, viruses, or other threats.

To pin apps to the taskbar. Select Start , select the arrow next to All apps, right-click the app, then select More > Pin to taskbar.

You can easily insert a check mark (also known as a "tick mark") in Word, Outlook, Excel, or PowerPoint. These marks are static symbols. If you're looking for an interactive check box that you can click to check or uncheck, see: Add a check box or option button (Excel) or Make a checklist in Word. In your file, place the cursor where you want to insert the symbol.

Use date and time functions to create formulas that return serial numbers, display a specific date or time, or that calculate the difference between dates or times.

To add another account to OneDrive on your computer. If you already have a personal OneDrive account set up, you can only add work or school accounts.

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.

但如果需要测试多个条件，例如我们假设所有条件都需要为 True 或 False (AND)，或只有一个条件需要为 True 或 False (OR)，或者如果想要检查某个条件是否不 (NOT) 符合你的条件，这时该怎么做呢？这三个函数均可以单独使用，但它们更常见于与 IF 函数成对使用。

RAM. 16 GB (recommended) Storage type. Solid State Drive or SSD (recommended) Processor architecture. x64 or ARM64. Virtual Machine Platform. This setting needs to be enabled.