Contact Support For help with your Microsoft account and subscriptions, visit Account & Billing Help. For technical support, go to Contact Microsoft Support, enter your problem and select Get Help.If you still need help, select Contact Support to be routed to the best support option. Admins

Receive photos, videos, or other kinds of files that you or a friend shares from another device, such as a phone, laptop, or tablet. On your PC, select Start > Settings > Devices > Bluetooth & other devices. Learn how to pair.

Access, download, or run the Surface app and the Surface Diagnostic Toolkit to help find and solve Surface problems.

Microsoft's products and services work best if you use the same language and region across all your devices, and in all of your app and Store settings.

Here's how to change the size of text, images, and apps in Windows. To change your display in Windows, select Start > Settings > Accessibility > Text size.To make only the text on your screen larger, adjust the slider next to Text size.To make everything larger, including images and apps, select Display , and then choose an option from the drop-down menu next to Scale.

Work with your files in your file system. Once you're synced, you’ll see your files in File Explorer. On a Mac, your files will appear under OneDrive in the Mac Finder.. If you use more than one account, your personal files appear under OneDrive – Personal and your work or school files appear under OneDrive - CompanyName.. You can copy or move files from your computer to OneDrive right ...

Clean up Mailbox. From the Settings > Storage page you should see a breakdown of how much space each folder in your mailbox is taking. Below, you should see a list of the folders represented in the breakdown with the option to permanently delete all items (or those older than 3, 6, or 12 months) in these folders to free up space.

Type about in the search box on your taskbar, and then select About your PC.. View your PC info

Training: With Microsoft Outlook on your PC, Mac or mobile device, you can organize email, share your calendar, schedule meetings, and share files. Watch this online video.

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。