A computer virus is a small software program that spreads from one computer to another and interferes with computer operation. A computer virus might corrupt or delete data on a computer, use an email program to spread the virus to other computers, or even delete everything on the hard disk.

Important: If your device is out of support, it is no longer receiving security updates from Microsoft and may become more vulnerable to security risks and viruses.For this reason, we strongly recommend that you update to the latest version of Windows. Each version of Windows is supported for 18 months.

Create a team from scratch: Choose Teams on the left side of the app, then select Create and join teams and channels at the top of your teams list.

To enter specific sequential number codes, such as purchase order numbers, you can use the ROW function together with the TEXT function. For example, to start a numbered list by using 000-001, you enter the formula =TEXT(ROW(A1),"000-000") in the first cell of the range that you want to number, and then drag the fill handle to the end of the range. ...

Si vous rencontrez des problèmes de son ou audio, les suggestions suivantes peuvent vous aider. Ces conseils sont affichés dans l’ordre. Commencez par le premier de la liste ; s’il ne vous permet pas de résoudre votre problème, passez au suivant.

当您在 Access 中打开 Excel 工作簿（在“文件”->“打开”对话框中，将“文件类型”列表框更改为“Microsoft Office Excel 文件”，然后选择所需文件）时，Access 会创建一个指向该工作簿的链接，而不导入该工作簿的数据。链接工作簿与在数据库中导入工作表从根本上说是不同的。

Training: With Microsoft Forms, you can create surveys, quizzes, and polls, and easily see results as they come in. When you create a quiz or form, you can invite others to respond to it using any web browser, even on mobile devices. As results are submitted, you can use built-in analytics to evaluate responses. Form data, such as quiz results, can be easily exported to Excel for additional ...

If your cloud storage is full, you'll need to either reduce the amount or size of the files you do have or buy more storage. Learn how to delete files to reduce your storage.

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.

Remove a manual page break. Go to Home and select Show/Hide .. This displays page breaks while you’re working on your document.