The Program Install and Uninstall troubleshooter helps you automatically repair issues when you're blocked from installing or removing programs.

Learn how to run a disk cleanup in Windows including deleting temporary and system files to free up disk space.

使用 vlookup、hlookup 和其他函数（如 index 和 match）根据您输入的值搜索和查找数据。 本文将让您快速回顾 vlookup，然后链接到更多内容。

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.

A delivery receipt confirms delivery of your email message to the recipient's mailbox, but not that the recipient has seen it or read it. A read receipt confirms that your message was opened.

Step 2: Back up your folders. Windows Backup is an easy, single stop for all of your backup needs. Your free Microsoft account comes with 5 GB of OneDrive cloud storage (and more storage is available if you need it), and backing up your folders syncs the folders you specify to your OneDrive account, making them instantly accessible on all computers that you use with this Microsoft account.

In the Rule Address dialog, under Address Book, select the contact list that contains the address you want to forward to.. In the To box at the bottom, enter the email address that you want to forward all your mail to.Select OK.You should see the email address you want all of your email forwarded to inserted into the rule under Step 2.

To change appearance, select Appearance and make the changes you want to your default theme, zoom, toolbar, and fonts.

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