Change from a 32-bit version to a 64-bit version or vice versa. Activate Windows. Fix Bluetooth problems in Windows. Learn how to install, reinstall, or activate Microsoft 365 or Office 2019 on a PC or Mac.

Set up Office apps and email on a mobile device. Learn how to share Microsoft 365 Family subscription benefits with up to five people. Manage invitations, devices, and people you've shared Office with.

Sometimes you need to make a change to your email account settings. If you have a new password, if your email provider has asked you to change settings, or if you're having problems with sending and receiving email, you can change your email account settings through Mail in the Windows Control Panel, or from Outlook.

Manage devices used with your Microsoft account. Adding a device to your Microsoft account helps you see its warranty status, get support or request service. You can also find or lock it if it's lost. On this page: Add | Register | Repairs | Rename | Remove | Unlink | Find & lock.

Cancel Microsoft 365 with the help of a support advocate. If you're thinking of cancelling a Microsoft 365 subscription or need help switching to another plan that better meets your needs, support agents are available to help. Request a call back.

Get Microsoft 365 support, help, and learning resources. Organize your life, expand your creativity, and protect what’s important with Microsoft 365

If you’re a business customer, visit Business billing help or Understand your bill for Microsoft Azure. Learn what to do if you find charges you don't recognize from Microsoft.

Download printer drivers in Windows. If your printer isn't responding, you may need to remove it and reinstall it so Windows can download and install the proper drivers. Make sure your printer is on and connected to your PC. Open Start > Settings > Bluetooth & devices > Printers & scanners .

Download and install the new Microsoft Edge. Make sure you have administrator privileges on your device and do the following: Go to the Microsoft Edge web page to download and install Microsoft Edge on your Windows, macOS, iOS, or Android device.

Outlook 布局概述. “文件夹”窗格中提供有文件夹。. 已预填充部分文件夹，也可创建新文件夹。. 收件箱位于“邮件”列表中。. 电子邮件在“阅读”窗格中打开。. 功能区提供了用于组织电子邮件的更多选项。. 选择最右边的箭头展开或折叠功能区。.