Important: you should limit the number of administrators on your Windows device because administrators have complete control over the system.Administrators can change settings, install software, and access all files. If too many people have this level of access, it could lead to security risks like malware installation or unwanted changes to your system.

Training: Sign in to office.com with your Microsoft personal, work, or school account. Watch this video to learn how.

Copilot は、既存のテーマとテンプレートを使用してプレゼンテーションを作成できます。 詳しくは、PowerPoint で Copilot でプレゼンテーションを見栄え良くするをご覧ください。 テーマを使用して既存のプレゼンテーションを開くか、[ファイル]、[新規作成] の順に移動するか Office.com からテーマ ...

Under Ways to sign in , you have three choices to sign in with Windows Hello:. Select Facial recognition (Windows Hello) to set up facial recognition sign-in with your PC's infrared camera or an external infrared camera

Look up a forgotten username using other information. Look up your username using your security contact phone number or email address. Search

If you need instructions for adding an email account using advanced settings, go to Use advanced setup to add a POP or IMAP email account in Outlook for PC. Outlook won't accept my password. If Outlook won’t accept your password and you know you’re using the right password for your Gmail account, you might have an older version of Outlook that doesn't currently support this faster Gmail ...

Things to try first. Try these things first to help you fix or narrow down the connection problem. Run Get Help to troubleshoot and fix common connection problems. Right click the network icon in the right side of the taskbar and select Diagnose network problems or open Get Help for Network & Internet

Hinweis: Der beste und sicherste Weg, um Treiber-Updates in Windows zu erhalten, ist immer über Windows Update.Wenn Sie Probleme mit Windows Update haben, sollten Sie zunächst prüfen, ob einer der Links unter Update Windows Ihnen weiterhelfen kann.

Import a text file by opening it in Excel. You can open a text file that you created in another program as an Excel workbook by using the Open command. Opening a text file in Excel does not change the format of the file — you can see this in the Excel title bar, where the name of the file retains the text file name extension (for example, .txt or .csv).

A workbook is a file that contains one or more worksheets to help you organize data. You can create a new workbook from a blank workbook or a template. By default, a new workbook contains three worksheets, but you can change the number of worksheets that you want a new workbook to contain. You can also add and remove worksheets as needed.