Buy stuff from Microsoft Store online (from your mobile device, on Xbox One, in the Microsoft Store app on your Windows 10/11 or Windows 8.1 device, or via the web).

Email addresses and phone numbers associated with your Microsoft account are called aliases and they use the same contacts, online storage, subscriptions, and account settings.

Choose the mobile app. Open a browser on your computer and go to portal.office.com.Sign in to your Office 365 for business account.

Note: If it’s been fewer than 10 days since you upgraded to Windows 10, your previous version of Windows will be listed as a system file you can delete.If you need to free up drive space, you can delete it, but keep in mind that you'll be deleting your Windows.old folder, which contains files that give you the option to go back to your previous version of Windows.

Get help with signing in, changing passwords, creating and sending mail, deleting mail, creating folders, and more in Outlook on the web.

There are different ways to remove apps and programs, so if you can't find the one you're looking for, you can try another location. Note that some apps and programs are built into Windows and can't be uninstalled.

To add another account to OneDrive on your computer. If you already have a personal OneDrive account set up, you can only add work or school accounts.

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:

个人设备的所有者或管理员激活了 BitLocker (在某些设备上也称为设备加密，) 通过“设置”应用或控制面板： 在这种情况下，激活 BitLocker 的用户选择了保存密钥的位置，或者在设备加密的情况下选择 (，) 自动将密钥保存到其 Microsoft 帐户。

To find touchpad devices, select Human Interface Devices or Mice and other pointing devices, then right-click the device you'd like to update.