Learn how to upgrade Windows 10 Home to Windows 10 Pro to access more advanced security and networking features.

Learn how to use digital signatures, digital IDs, and signature lines in Microsoft 365 files, such as Word, Excel, and PowerPoint.

Learn how to reset your PIN if you aren't signed in to Windows and having trouble using your PIN.

Add additional privacy protection to email messages with encryption.

Learn how to change Microsoft account email address or phone number using aliases to sign into your Microsoft account.

Learn how to activate Windows using an internet connection, automated system, or live support advocate.

Hotmail 現在為 Outlook.com。 瞭解如何登入以存取您的 Outlook.com、Hotmail、Live 或 MSN 電子郵件帳戶。

Microsoft Rewards offers and redemption catalogs vary across regions. The following is a list of countries/regions in which Microsoft Rewards is currently available:

The new Microsoft Edge helps you browse, search, shop online, and more. Like all modern browsers, Microsoft Edge lets you collect and store specific data on your device, like cookies, and lets you send information to us, like browsing history, to make the experience as rich, fast, and personal as possible.

Learn how to fix problems signing into your Microsoft account. Resolve password verification, locked account, and other Microsoft account login issues.