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How to change your user account name - Microsoft Support
The user account name on a Windows device shows the name of the signed-in Microsoft account or work/school account. To change which user is signed in, select the Start button on the taskbar. Then select the account name icon or picture to see a list of users you can switch to.
Desktop Themes - Microsoft Support
A theme is a combination of desktop background pictures, window colors, and sounds. Get a theme. To get a theme, expand one of the categories below, select a link for the theme, and then select Open.This saves the theme to your PC and puts it on your desktop.
Calculate the difference between two dates - Microsoft Support
This isn't the date you'll set, it's just a sample of how the format will look. Note that in versions prior to Excel 2016, this format might have a different sample date like 3/14/01 1:30 PM. 3. Subtract the two. In another cell, subtract the start date/time from the end date/time. The result will probably look like a number and decimal.
Applies To: Excel for Microsoft 365, Excel 2021, Excel 2019, Excel 2016
Windowsでドライバーを手動で更新する - Microsoft サポート
注: Windowsでドライバーの更新プログラムを取得する最も安全で安全な方法は、常にWindows Updateです。Windows Updateに問題がある場合は、Update Windowsのリンクのいずれかが最初に役立つかどうかを確認できます。
Change your desktop background image - Microsoft Support
In the list next to Personalize your background, select Picture, Solid color, Slideshow, or Windows Spotlight (to see a new image from around the world every day).
Change your screen resolution in Windows - Microsoft Support
In the Display resolution row, select the list and choose an option.It's usually best to stick with the one that's marked (Recommended). Monitors can support resolutions that are lower than their native resolutions, but text won't look as sharp and the display might be small, centered on the screen, edged with black, or stretched.
Using product keys with Office - Microsoft Support
If you see a Let's get started screen with options to try, buy, or activate Office, this means that Office is installed on your new PC as a 1-month trial of Microsoft 365 Family. You won't receive a product key from your PC manufacturer unless you paid for an Office product key card. Instead, you can start a trial of Microsoft 365 Family, or buy Office.
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
Insert a table of contents - Microsoft Support
Note: If you use a Manual Table of Contents style, Word won't use your headings to create a table of contents and won't be able to update it automatically. Instead, Word will use placeholder text to create the look of a table of contents so you can manually type each entry into the table of contents.
Applies To: Word for Microsoft 365, Word for Microsoft 365 for Mac, Word for the web, Word 2021, Word 2021 for Mac, Word 2019, Word 2019 for Mac, Word 2016
Change desktop background and colors - Microsoft Support
Select Start > Settings > Personalization.The preview window gives you a sneak peek of your changes as you make them. In Personalize your background, you can select a picture, a solid color, or a slideshow of pictures you create.Or you can choose Windows spotlight to see a new image from around the world every day.
Fix microphone problems - Microsoft Support
If you want to give access to desktop apps, make sure that Let desktop apps access your microphone is turned on.You can't turn off microphone access for individual apps. Others can't hear me. Try the following solutions: