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Change your screen saver settings - Microsoft Support
Change your screen saver settings. Select the Start button, then go to Settings > Personalization > Lock screen, and select Screen saver settings.In the Screen Saver Settings window, choose a screen saver from the drop-down list.
Microsoft アカウントのメール アドレスまたは電話番号を変更する
Microsoft アカウントにサインインするためのエイリアスを使用した Microsoft アカウントのメール アドレスまたは電話番号を変更する方法について説明します。
Applies To: Microsoft account dashboard
Back up your BitLocker recovery key - Microsoft Support
Having a backup copy of your BitLocker recovery key helps to prevent serious issues later. It takes less than a minute to back up your key and this article will show you how.
Set up the Microsoft Authenticator app as your verification method
Set up the Microsoft Authenticator app from the Security info page. Depending on your organization’s settings, you might be able to use an authentication app as one of your security info methods.
Encrypt email messages - Microsoft Support
Add additional privacy protection to email messages with encryption.
Applies To: Outlook for Microsoft 365, Outlook 2021, Outlook 2019, Outlook 2016
Avoid and report Microsoft technical support scams
Provides information for avoiding and reporting Microsoft technical support scams.
How to add an account in OneDrive - Microsoft Support
If you already have an account signed in to OneDrive and you want to add or remove another account, you’ll do that in OneDrive Settings.
Applies To: OneDrive (work or school), OneDrive (home or personal), OneDrive for Mac, OneDrive for Windows
Overview of formulas in Excel - Microsoft Support
Master the art of Excel formulas with our comprehensive guide. Learn how to perform calculations, manipulate cell contents, and test conditions with ease.
Applies To: Excel for Microsoft 365, Excel 2021, Excel 2019, Excel 2016
Open Device Manager - Microsoft Support
Open Device Manager. By pressing submit, your feedback will be used to improve Microsoft products and services.
Add or subtract dates - Microsoft Support
Add or subtract days, months, or years from a date by using a formula or date functions in Excel.
Applies To: Excel for Microsoft 365, Excel for the web, Excel 2021, Excel 2019, Excel 2016