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How to sign in to Hotmail - Microsoft Support
Hotmail is now Outlook.com. Learn how to sign in to access your Outlook.com, Hotmail, Live, or MSN email account.
Applies To: Outlook.com
How to use the PC Health Check app - Microsoft Support
PC Health Check app brings you up to date info on your Windows device health, helping you take action to improve your device performance and troubleshoot performance problems. It is periodically updated based on customer feedback to help you make the most of your Windows PC. How to open PC Health Check. In Windows, use Search on the taskbar to ...
Digital signatures and certificates - Microsoft Support
The certificate associated with the digital signature is issued to the signing publisher by a reputable certificate authority (CA). Top of Page. Digital signatures provide assurances about the validity and authenticity of digital documents.
Applies To: Excel for Microsoft 365, Word for Microsoft 365, PowerPoint for Microsoft 365, Access for Microsoft 365, Visio Plan 2, Excel 2021, Word 2021, PowerPoint 2021, Access 2021, Visio Professional 2021, Visio Standard 2021, Excel 2019, Word 2019, PowerPoint 2019, Access 2019, Visio Professional 2019, Visio Standard 2019, Excel 2016, Word 2016, PowerPoint 2016, Access 2016, Visio Professional 2016, Visio Standard 2016
Insert mathematical symbols - Microsoft Support
In Word, you can insert mathematical symbols into equations or text by using the equation tools. On the Insert tab, in the Symbols group, click the arrow under Equation, and then click Insert New Equation. Under Equation Tools, on the Design tab, in the Symbols group, click the More arrow.
Applies To: Word for Microsoft 365, Word 2021, Word 2019, Word 2016
Sum data by using a query - Microsoft Support
Understand ways to sum data. You can sum a column of numbers in a query by using a type of function called an aggregate function. Aggregate functions perform a calculation on a column of data and return a single value. Access provides a variety of aggregate functions, including Sum, Count, Avg (for computing averages), Min and Max.
Applies To: Access for Microsoft 365, Access 2021, Access 2019, Access 2016
Change the email address or phone number for your Microsoft account
Add, remove or update an email address or phone number. If you want to make changes to the email addresses or phone numbers associated with your Microsoft account, use our guided support tool below to help you update the right information in the right way.
Applies To: Microsoft account dashboard
Convert numbers stored as text to numbers - Microsoft Support
Most of the time, Excel will recognize this, and you'll see an alert next to the cell where numbers are being stored as text. If you see the alert: Select the cells you want to convert, and then select . Select Convert to Number from the menu. You will see the values left aligned and green triangle warning removed.
Applies To: Excel for Microsoft 365, Excel for Microsoft 365 for Mac, Excel 2021, Excel 2021 for Mac, Excel 2019, Excel 2019 for Mac, Excel 2016, Excel Web App
Using product keys with Office - Microsoft Support
If you paid for an Office product to be included on your new Windows PC, a digital product key is transmitted to your PC when you activate Windows. You won't receive a printed product key. Instead, you'll see a message similar to the following when you start Word (or any Office app).
Applies To: Excel for Microsoft 365, Word for Microsoft 365, Outlook for Microsoft 365, PowerPoint for Microsoft 365, Access for Microsoft 365, OneNote for Microsoft 365, Publisher for Microsoft 365, Visio Plan 2, Excel 2021, Word 2021, Outlook 2021, PowerPoint 2021, Access 2021, Project Standard 2021, Publisher 2021, Visio Professional 2021, Visio Standard 2021, Office 2021, OneNote 2021, Excel 2019, Word 2019, Outlook 2019, PowerPoint 2019, Access 2019, Project Standard 2019, Publisher 2019, Visio Professional 2019, Visio Standard 2019, Office 2019, Excel 2016, Word 2016, Outlook 2016, PowerPoint 2016, OneNote 2016, Project Professional 2016, Project Standard 2016, Publisher 2016, Visio Professional 2016, Microsoft 365 for home, InfoPath 2013
Change the power mode for your Windows PC - Microsoft Support
Choose the power mode that works for you and what you want to do on your Windows 11 PC. This lets you determine what’s important to you—getting the best battery life, best performance, or a balance between the two. To change the power mode, select Start > Settings > System > Power & battery.
如何登入 Hotmail - Microsoft Support
登入 Hotmail 或 Outlook.com. Hotmail 現在為 Outlook.com. 若要登入 Hotmail,您將需要您的 Microsoft 帳戶使用者名稱和密碼。. 提示: 登入時,如果您下次想要直接移至信箱,請在 [保持登入?] 提示中選取 [是] (不建議用於共用電腦)。. 或者,選取 [不要再顯示這個] 方塊,然後 ...
Applies To: Outlook.com