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Upgrade Windows Home to Windows Pro - Microsoft Support
To upgrade from Windows 11 Home to Windows 11 Pro manually, first check which edition you’re running and your activation state: Select Start > Settings > System > Activation. At the top of the Activation page, you see your edition: either Home or Pro. You‘ll also see if you’re activated under Activation state . Open Activation settings ...
Secure messages by using a digital signature - Microsoft Support
In the message, on the Options tab, in the Permission group, click Sign Message. In the message, click Options. In the More Options group, click the dialog box launcher in the lower-right corner. Click Security Settings, and then select the Add digital signature to this message check box. Click OK, and then click Close.
Applies To: Outlook for Microsoft 365, Outlook 2021, Outlook 2019, Outlook 2016, Outlook 2013
วิธีใช้และการเรียนรู้สำหรับ Windows
ค้นหาข้อมูลที่จำเป็นสำหรับการสร้าง ดำเนินงาน และทำให้ธุรกิจขนาดเล็กของคุณเติบโตด้วย Microsoft 365. ไปที่วิธีใช้และการเรียนรู้ ...
Fix Wi-Fi connection issues in Windows - Microsoft Support
Right click the network icon in the right side of the taskbar and select Diagnose network problems or open Get Help for Network & Internet. Make sure Wi‑Fi is turned on. Select the No internet icon on the right side of the taskbar, and make sure Wi-Fi is turned on. If it isn't, select it to turn it on. Also, make sure Airplane mode is turned off.
Count numbers greater than or less than a number
Use COUNTIF to count the number of cells that meet a specific criteria. For example, you are preparing a report and want to count how many sales invoices were greater or lesser than a particular value. Use the COUNTIF function to count numbers greater than or less than a number. Cells A11 and A12 have formulas where COUNTIF checks the B2:B7 ...
Applies To: Excel for Microsoft 365, Excel 2021, Excel 2019, Excel 2016
Create conditional formulas - Microsoft Support
You can use the AND, OR, NOT, and IF functions to create conditional formulas. For example, the IF function uses the following arguments. Formula that uses the IF function. logical_test: The condition that you want to check. value_if_true: The value to return if the condition is True. value_if_false: The value to return if the condition is False.
Applies To: Excel for Microsoft 365, Excel 2021, Excel 2019, Excel 2016
在 Teams 作业中设置加权评分类别 - Microsoft 支持
导航到所需的课堂团队,然后选择“ 成绩 ”选项卡。. 选择“ 分配设置 ”图标 。. 3. 滚动到 “评分设置” ,并将 “加权评分类别 ”切换为“ 开 ”。. 4.将显示 “管理评分类别 ”窗口。. 选择 “添加评分类别 ”。. 5. 命名评分类别,并输入要分配的百分比 ...
Switch between relative, absolute, and mixed references
In the formula bar , select the reference that you want to change. Press F4 to switch between the reference types. The table below summarizes how a reference type updates if a formula containing the reference is copied two cells down and two cells to the right. Use absolute or relative cell references in formulas, or a mix of both.
Applies To: Excel for Microsoft 365, Excel for the web, Excel 2021, Excel 2019, Excel 2016, Excel Web App
Calculate the difference between two dates - Microsoft Support
Use the DATEDIF function when you want to calculate the difference between two dates. First put a start date in a cell, and an end date in another. Then type a formula like one of the following. Warning: If the Start_date is greater than the End_date, the result will be #NUM!.
Applies To: Excel for Microsoft 365, Excel 2021, Excel 2019, Excel 2016
Freeze panes to lock rows and columns - Microsoft Support
Select View > Freeze Panes > Freeze First Column. The faint line that appears between Column A and B shows that the first column is frozen. Freeze the first two columns. Select the third column. Select View > Freeze Panes > Freeze Panes. Freeze columns and rows. Select the cell below the rows and to the right of the columns you want to keep ...
Applies To: Excel for Microsoft 365, Excel for the web, Excel 2021, Excel 2019, Excel 2016