Digital signatures and certificates | Microsoft Support
A signature confirms that the information originated from the signer and has not been altered. The following is an example of a signature line. Top of Page Signing certificate and certificate authority Signing certificate To create a digital signature, you need a signing certificate, which proves identity.
Applies To:
Excel for Microsoft 365, Word for Microsoft 365, PowerPoint for Microsoft 365, Access for Microsoft 365, Excel 2024, PowerPoint 2024, Access 2024, 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
Set up the Outlook app for iOS | Microsoft Support
Set up another email account in Outlook for iOS Open the Outlook for iOS app on your iOS device. At the top of the app, tap Inbox, and then select Settings . Select Account, then Add Account to add one of your existing email accounts or Create New Account if you want to create a new Microsoft account.
Applies To:
Outlook for Microsoft 365, Outlook for Microsoft 365 for Mac, Outlook 2024, Outlook 2024 for Mac, Outlook 2021, Outlook 2021 for Mac, Outlook 2019, Outlook 2016, Microsoft 365 for home, Office 365 Small Business, Microsoft 365 admin, Outlook.com, New Outlook for Windows, Outlook for iOS
Secure your account if you think you’ve been hacked
If you think your Microsoft account has been hacked, find out how to secure your account and check for unauthorized activity.
Introducing the XBOX mobile apps | XBOX Support
Get info on all the XBOX mobile apps and find out what the apps can do for you and your gaming experience.
Preparing the Windows ecosystem for next-generation code signing
PQC transition: Windows signing will transition to post-quantum signing in 2027. The evolving landscape of PQC and customer requirements place cryptographic agility front and center in this transition. Future signing might use new algorithms and hybrid signature constructions and might require rapid changes as we adjust to the post-quantum world.
Actions in the Microsoft Copilot app for iOS
If you're currently signed in to the Microsoft Copilot app with an Intune-managed account, the Forms functionality outlined below will be unavailable. Consider signing in with a different account. While the Microsoft Copilot app currently supports signing in with phone number-based Microsoft accounts, Microsoft Forms does not.
Applies To:
Microsoft 365 Copilot app for iOS
How to Multitask in Windows - Microsoft Support
Learn how to multitask in Windows with this comprehensive guide. Discover the best tips and tricks for using Alt+Tab, Task View (Win+Tab), multiple desktops, and the Snap feature to enhance your productivity and efficiently manage multiple tasks and applications. Whether you're a beginner or an advanced user, this article will help you master multitasking in Windows.
Windows support for the Application Control for Business new CA ...
Introduction The article outlines the new Application Control for Business (formerly known as Windows Defender Application Control (WDAC)) handling logic for signer rules where a TBS hash value for a Microsoft intermediate certificate authority (CA) is specified. Microsoft Issuing CAs Microsoft and Windows components are signed by leaf certificates mainly issued by six Microsoft Issuing CAs ...
Can't sign in to the Outlook mobile app | Microsoft Support
If you can't sign in to your email account on the Outlook mobile app, get help for the account you're trying to sign in with Microsoft personal account If you can't sign into your Microsoft account, most issues can be identified by our sign-in helper tool. The tool will ask you to enter the email address or mobile phone number you're trying to sign in with and check the details you provide. If ...
Applies To:
Outlook for Android, Outlook for iOS
iOS & iPadOS users may experience issues accessing their Outlook and ...
Resolution Steps iOS/iPadOS users must take the following steps to access their accounts: 1. Open the Settings app on your iPhone. 2. Scroll down and tap on Mail. 3. Select Accounts under the Mail settings. 4. Tap on the email account for which you need to re-enter the password. 5.