解决激活错误. 如果 Microsoft 365 无法激活，其最后会变为未授权，且 Microsoft 365 的所有编辑功能都会被禁用。 Microsoft 可能由于多种原因变为未授权。

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.

If you have this Surface. Find it here. Surface Laptop, any Surface Laptop Go, and Surface Laptop SE. Look under your keyboard near the hinge. Any Surface Laptop Studio. Starting in Laptop mode, gently rotate the top of the display backwards 180 degrees.

If you want multiple copies of a printout, change the number of copies in the Print page: On Windows 7 or earlier, at the top of the Print page is a box labeled Copies with up and down arrows for you to choose how many copies of the document you want. Make your choice (either by entering a number or using the arrows), and then click Print.

Select Review activity to check for any unusual sign-in attempts on the Recent activity page.If you see account activity that you're sure wasn't yours, let us know and we can help secure your account—if it's in the Unusual activity section, you can expand the activity and select This wasn't me.If it's in the Recent activity section, you can expand the activity and select Secure your account.

Explore subscription benefits, browse training courses, learn how to secure your device, and more.

Note: To let a user enter percentages, for example 20%, select Decimal in the Allow box, select the type of restriction that you want in the Data box, enter the minimum, maximum, or specific value as a decimal, for example .2 , and then display the data validation cell as a percentage by selecting the cell and clicking Percent Style in the Number group on the Home tab.

Splits text strings by using column and row delimiters. The TEXTSPLIT function works the same as the Text-to-Columns wizard, but in formula form.It allows you to split across columns or down by rows.

To change the default app, you can do either of the following: Set a default for a file type or link type In the search bar, enter the file type or link type you want, then select it from the list of results.

Wenn Sie das Kennwort ändern oder zurücksetzen möchten, das Sie für die Anmeldung bei Windows verwenden, haben Sie verschiedene Optionen. In diesem Artikel werden die verschiedenen Ansätze beschrieben, die Sie verfolgen können, unabhängig davon, ob Sie ein Microsoft-Konto oder ein lokales Konto verwenden, angemeldet sind oder auf dem Anmeldebildschirm angezeigt werden.