Learn how you can free up drive space in Windows. Keep your PC running smoothly and up to date by increasing the disk space.

了解在 Windows 中查找 BitLocker 恢复密钥的不同方法，并了解如何在系统上激活 BitLocker。

You can insert a drop-down list of valid entries (also called a drop-down menu or drop-down box) in Excel to make data entry easier, or to limit entries to certain items that you define.

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

Learn how to connect a Bluetooth device in Windows and adjust Bluetooth pairing settings.

Learn how to add user accounts in Windows 10 and Windows 11. With an account, each person has separate files, browser favorites, and a private desktop.

Learn how to set up and configure Outlook so that you can begin to use it.

Click on the + icon labelled and add the preferred Indic language (by selecting into the search box and select it – for example “Hindi” and click on the next button and install the Indic language on the device, which will then return to the Language page).

Get more out of your email with Outlook.com. We've streamlined search to make it easier than ever to find what you're looking for. New features like Files and attachment previews let you see your pictures and files without leaving your inbox.

Help to decide whether you should install the 32-bit Office version or the 64-bit Office version. Which version is right for you depends on how you plan to use Office. Find out about choosing between 32-bit Office and 64-bit Office.