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失われたファイルまたは削除されたファイルを回復する ...
注: ライブラリに含まれているファイルまたはフォルダーの以前のバージョンを復元する場合は、ライブラリ内ではなく目的のファイルまたはフォルダーが保存されている場所で、そのファイルまたはフォルダーを右クリックします。たとえば、以前のバージョンに戻す画像が画像ライブラリー ...
Change the capitalization or case of text - Microsoft Support
Select the text for which you want to change the case. Go to Home > Change case . Do one of the following: To capitalize the first letter of a sentence and leave all other letters as lowercase, select Sentence case. To exclude capital letters from your text, select lowercase. To capitalize all of the letters, select UPPERCASE.
适用于: Microsoft 365 专属 Word, Microsoft 365 专属 PowerPoint, Microsoft 365 Mac 版专属 Word, Microsoft 365 Mac 版专属 PowerPoint, Word 网页版, PowerPoint 网页版, Word 2021, PowerPoint 2021, Word 2021 for Mac, PowerPoint 2021 for Mac, Word 2019, PowerPoint 2019, Word 2019 for Mac, PowerPoint 2019 for Mac, Word 2016, PowerPoint 2016
How to check if your email address is a Microsoft account
Go to the Microsoft account sign-in page at https://account.microsoft.com and enter your email address. If you see a message that says "We couldn't find an account with that username." or "That Microsoft account doesn't exist", then the address you entered is not a Microsoft account. If you believe it should be: The account may have been closed.
适用于: Microsoft 帐户仪表板
Mouse and keyboard problems in Windows - Microsoft Support
First, try checking your hardware. Try using a different USB port on your PC. If you use a USB hub between the device and the PC, make sure the hub has power. If it’s still not working, try removing the USB hub and plugging the device directly into a USB port on the PC. Make sure that the cables on your device aren't damaged in any way.
Open Snipping Tool and take a screenshot - Microsoft Support
To open the Snipping Tool, select Start, enter snipping tool, then select it from the results. Select New to take a screenshot. Rectangular mode is selected by default. You can change the shape of your snip by choosing one of the following options in the toolbar: Rectangular mode, Window mode, Full-screen mode, and Free-form mode.
Add and request read receipts and delivery notifications in Outlook
How to request a read receipt and/or delivery receipt in new Outlook. In a message you're composing, go to the Options tab on the ribbon. In Tracking on the ribbon, select the Request a Delivery Receipt box and/or the Request a Read Receipt box. If you don't see these choices under Options, select More Options at the right end of the ribbon ...
适用于: Microsoft 365 专属 Outlook, Outlook 2021, Outlook 2019, Outlook 2016, Outlook 网页版, Outlook.com, 新的 Outlook for Windows, 适用于 Exchange Server 2016 的 Outlook 网页版, 适用于 Exchange Server 2019 的 Outlook 网页版
Find the Recycle Bin - Microsoft Support
Find the Recycle Bin. If your desktop shows no icons at all, right-click (or press and hold) the desktop and select View. If Show desktop icons has no checkmark, click it to add one. If that doesn't work, try this: Select Start > Settings > Personalization > Themes > Desktop icon settings. Make sure the check box for Recycle Bin is checked ...
SUMIF function - Microsoft Support
sum_range Optional.The actual cells to add, if you want to add cells other than those specified in the range argument. If the sum_range argument is omitted, Excel adds the cells that are specified in the range argument (the same cells to which the criteria is applied).. Sum_range should be the same size and shape as range.If it isn't, performance may suffer, and the formula will sum a range of ...
适用于: Microsoft 365 专属 Excel, Microsoft 365 Mac 版专属 Excel, Excel 网页版, Excel 2021, Excel 2021 for Mac, Excel 2019, Excel 2019 for Mac, Excel 2016
Create a drop-down list - Microsoft Support
Select the cell in the worksheet where you want the drop-down list. Go to the Data tab on the Ribbon, and then Data Validation. Note: If you can’t select Data Validation, the worksheet might be protected or shared. Unlock specific areas of a protected workbook or stop sharing the worksheet, and then try step 3 again.
适用于: Microsoft 365 专属 Excel, Microsoft 365 Mac 版专属 Excel, Excel 网页版, Excel 2021, Excel 2021 for Mac, Excel 2019, Excel 2019 for Mac, Excel 2016
Turn on device encryption - Microsoft Support
In the search box on the taskbar, type Manage BitLocker and then select it from the list of results. Or, select the Start button, and then under Windows System, select Control Panel.In Control Panel, select System and Security, and then under BitLocker Drive Encryption, select Manage BitLocker. Note: You'll only see this option if BitLocker is available for your device.