Learn how to reinstall Windows on your PC and how activation works after it's installed.

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.

Things to try to fix touchpad problems in Windows 10 and 11. If your touchpad isn’t working, it may be a result of a missing or out-of-date driver.

Learn ways to fix common printing problems in Windows 10. Reinstall your printer. If your printer is turned on and connected to the network, Windows should find it easily.

Learn how to use keyboard shortcuts in Word to navigate, select, format, and edit your documents faster and easier.

PC に Office 2013 または Office for Mac 2011 をインストールする方法について説明します。

忘れた場合や紛失した場合に Windows パスワードを変更またはリセットする方法について説明します。

You can block messages from specific email addresses or domains from reaching your inbox. When you add an email address or domain to your blocked senders list, Outlook automatically moves messages from that sender to the Junk Email folder.

Learn how to reset or change your Microsoft account password. Get help with a forgotten Microsoft account password.

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