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.

Contact Support. 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. Learn how to manage your Microsoft account security info and troubleshoot verification code issues.

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.

If you’re using the multiple apps experience ( select Samsung, HONOR, OPPO, and ASUS devices ), you can drag and drop content from and into your mobile apps. Not all apps accept dragging and dropping content, or may not accept the file type you’re transferring.

Use Remote Desktop on your Windows, Android, or iOS device to connect to a Windows 10 PC from afar. Here's how to set up your PC to allow remote connections and then connect to the PC you set up.

Help with a work or school account password. I need to talk to a customer support agent. Learn how to get Microsoft account help, troubleshoot sign in issues, keep your account secure, and manage your Microsoft account dashboard.

Wired connections: Activate and use any wired connections, including Ethernet, USB, and Serial communications between your device, the internet, and other devices. Learn how to locate and manage your app permissions on Windows devices. Some apps or games need specific permissions to work properly.

Troubleshooting verification code issues. Avoid and report Microsoft technical support scams. Learn how to unlock your Microsoft account and resolve 'account has been locked' error message.

Microsoft support is here to help you with Microsoft products. Find how-to articles, videos, and training for Microsoft Copilot, Microsoft 365, Windows, Surface, and more.

Learn how to activate Windows using a product key or digital license, check your activation status, and link your Microsoft account.