Find or fix a device in your Microsoft account
To check for any security issues, go to Windows Defender settings, select Show details, and check your security status.
在 Windows 中通过网络共享文件 - Microsoft 支持
在网络上选择要与之共享文件的用户,或选择“所有人 ”以授予所有网络用户访问该文件的权限。 如果你同时选择多个文件,可以用相同的方式共享它们。 这种方法对文件夹同样有效 - 共享文件夹意味着共享其中的所有文件。
How to correct a #VALUE! error - Microsoft Support
Check your computer's date settings. Excel uses your computer's date system. If a cell's date isn't entered using the same date system, Excel won't recognize it as a true date.
Applies To: Excel for Microsoft 365, Excel for Microsoft 365 for Mac, Excel for the web, Excel 2021, Excel 2021 for Mac, Excel 2019, Excel 2019 for Mac, Excel 2016, Excel Web App
Sign in to Office - Microsoft Support
Sign in to www.office.com from a web browser and start using the apps on the web or access other web services associated with your account such as OneDrive.. How you sign in to an installed Office app depends on your device.
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, Project Online Desktop Client, Publisher for Microsoft 365, Visio Plan 2, Excel for Microsoft 365 for Mac, Word for Microsoft 365 for Mac, Outlook for Microsoft 365 for Mac, PowerPoint for Microsoft 365 for Mac, OneNote for Microsoft 365 for Mac, Excel for the web, Word for the web, OneNote for the web, PowerPoint for the web, Excel 2021, Word 2021, Outlook 2021, PowerPoint 2021, Access 2021, Project Professional 2021, Project Standard 2021, Publisher 2021, Visio Professional 2021, Visio Standard 2021, Excel 2021 for Mac, Word 2021 for Mac, Outlook 2021 for Mac, PowerPoint 2021 for Mac, OneNote 2021 for Mac, Office 2021 for Mac, Excel 2019, Word 2019, Outlook 2019, PowerPoint 2019, Access 2019, Project Professional 2019, Project Standard 2019, Publisher 2019, Visio Professional 2019, Visio Standard 2019, Excel 2019 for Mac, Word 2019 for Mac, Outlook 2019 for Mac, PowerPoint 2019 for Mac, OneNote 2019 for Mac, Office 2019 for Mac, Excel 2016, Word 2016, Outlook 2016, PowerPoint 2016, Access 2016, OneNote 2016, Project Professional 2016, Project Standard 2016, Publisher 2016, Visio Professional 2016, Visio Standard 2016, OneNote for Mac, Microsoft 365 for home, Office for business, Office 365 Small Business, Microsoft 365 admin, Project Online, Microsoft 365 for Mac
Change your Microsoft account password - Microsoft Support
If you weren't able to change your password. If you couldn't change your password this way, see Reset your Microsoft account password. Need more help? Contact Support. For technical support, go to Contact Microsoft Support, enter your problem and select Get Help.If you still need help, select Contact Support to be routed to the best support option.
Applies To: Microsoft account dashboard
Add a custom domain name - Microsoft Support
Tip. It's easiest to add a custom domain before you add your users. Otherwise, you'll need to update your users' usernames when you connect your domain.
Solve PC problems remotely with Remote Assistance and Easy Connect
Do one of the following: If you've never used Easy Connect, select Use Easy Connect.. If you've used Easy Connect before, select your helper’s contact name. To invite someone who isn't on your contact list, select Invite someone to help you.
Fix connections to Bluetooth audio devices - Microsoft Support
If pressing the Connect button in action center doesn't find your device in Windows 10, here are some things to try:. Check action center to see if your Windows device supports Bluetooth. If it does, there'll be a Bluetooth button in action center. Make sure it's turned on.
View and manage your subscriptions on Xbox | Xbox Support
Note If the price for your Xbox subscription has changed, it may be because the subscription renewed after a trial or promotional rate to the full rate. You should be notified ahead of time if the full rate for a subscription changes for your region.
Manage your subscription - Microsoft Support
Communities help you ask and answer questions, give feedback, and hear from experts with rich knowledge.
Applies To: Outlook.com