Remove specific prevalent malware with Windows Malicious Software ...
Microsoft generally releases the MSRT on a monthly cadence as part of Windows Update or as a standalone tool. (For exceptions, see Skipped releases.)Use this tool to find and remove specific prevalent threats and reverse the changes that they made (see Covered malware families).For comprehensive malware detection and removal, consider using Windows Defender Offline or Microsoft Safety Scanner.
Manage devices used with your Microsoft account
Download Microsoft Edge from the Apple App Store and sign in with your Microsoft account.
Applies To: Microsoft account dashboard
How to check if your email address is a Microsoft account
A guide to help you identify and access your Microsoft account. How to check if your email is a Microsoft account? Go to the Microsoft account sign-in page at https://account.microsoft.com and enter your email address.
Applies To: Microsoft account dashboard
Set up your Microsoft 365 sign-in for multi-factor authentication
By setting up MFA, you add an extra layer of security to your Microsoft 365 account sign-in. For example, you first enter your password and, when prompted, you also type a dynamically generated verification code provided by an authenticator app or sent to your phone.
Applies To: Office for business, Microsoft 365 admin
Create and add an email signature in Outlook.com or Outlook on the web
Automatically add a signature to a message. You can create an email signature that you can add automatically to all outgoing messages or add manually to specific ones.
Applies To: Outlook on the web, Outlook.com, Outlook on the web for Exchange Server 2016, Outlook on the web for Exchange Server 2019
Share your Microsoft 365 Family subscription - Microsoft Support
Manage invitations to share Microsoft 365. On the Microsoft account, Sharing page, under the section Other people, you can view and manage invitations you’ve created.You can check the status of an invitation, resend, or delete invitations. If the person you sent an invitation to can't find it, see Can't find an invitation to share Microsoft 365 Family.
Applies To: Excel for Microsoft 365, Word for Microsoft 365, PowerPoint for Microsoft 365, Excel for Microsoft 365 for Mac, Word for Microsoft 365 for Mac, PowerPoint for Microsoft 365 for Mac, Microsoft 365 for home, Office for business, Microsoft account dashboard
Other email accounts like Gmail and Yahoo not working in Outlook.com
New or classic Outlook for Windows desktop apps Classic Outlook for Windows is a desktop app included with Microsoft 365 Personal or Family subscriptions or non-subscription versions of Office such as Office Home & Business. New Outlook for Windows is available free on Windows devices or as a free download.If you don't already have new Outlook, you can download it from the Microsoft Store ...
Applies To: Outlook.com
Send large files with Outlook - Microsoft Support
Compress the file. When you compress, or zip, your file, it decreases its size, and it might decrease it enough to fit within the Outlook size limits for attachments.The following articles describe how to compress and extract files for different Windows operating systems.
Applies To: Outlook for Microsoft 365, Outlook 2021, Outlook 2019, Outlook 2016
在 Windows 中管理用户帐户 - Microsoft 支持
Windows 允许添加多个用户帐户以使用同一设备,使每个用户都有自己的设置、文档和应用程序。 例如,家长可以拥有自己的具有管理权限的帐户来管理设置和安装软件,而孩子可以拥有启用了家长控制的标准帐户来监视和限制其使用情况。
Product activation for Windows – online & support telephone numbers
To activate Windows 10 using an internet connection: As Windows 10 will automatically activate if you are connected to the internet, you can confirm your activation status by selecting Start > Settings > Update & Security > Activation and looking under Windows.. If online activation fails, first try the activation troubleshooting in Activate Windows 10.