Windows help and learning
Find help and how-to articles for Windows operating systems. Get support for Windows and learn about installation, updates, privacy, security and more.
February 9, 2021—KB4601318 (OS Build 14393.4225) - EXPIRED
Windows 10, version 20H2 and Windows Server, version 20H2 update history; End of service statement; May 9, 2023—KB5026361 (OS Builds 19042.2965, 19044.2965, and 19045.2965)
启用 JavaScript - Microsoft 支持
提示: 如果您正在运行 Mac 操作系统,请单击“Firefox”下拉列表 >“首选项”。
Si applica a: Office 2013, SharePoint in Microsoft 365, Office per le aziende, Lync Web App per Lync Online, Lync Web App, Office 2010, Lync Web App gestito da 21Vianet
Ativar cookies - Suporte da Microsoft
Para que o Lync Web App funcione corretamente, deve ativar os cookies no seu browser. Eis como pode ativar os cookies se o seu browser estiver a bloqueá-los:
Si applica a: Lync Web App per Lync Online, Lync Web App, Lync Web App gestito da 21Vianet
Windows file system access and privacy - Microsoft Support
Some apps need to access your file system to allow you to take full advantage of the functionality they provide. Allowing an app to have file system access enables it to have access to the same files and folders to which you have access.
View, manage, and install add-ins for Excel, PowerPoint, and Word ...
When you enable an add-in, it adds custom commands and new features to Microsoft 365 programs that help increase your productivity. Because add-ins can be used by attackers to do harm to your computer, you can use add-in security settings to help protect yourself.
Si applica a: Excel per Microsoft 365, Word per Microsoft 365, PowerPoint per Microsoft 365, Excel per Microsoft 365 per Mac, Word per Microsoft 365 per Mac, PowerPoint per Microsoft 365 per Mac, Excel per il web, Word per il web, PowerPoint per il web, Excel 2021, Word 2021, PowerPoint 2021, Excel 2021 per Mac, Word 2021 per Mac, PowerPoint 2021 per Mac, Excel 2019, Word 2019, PowerPoint 2019, Excel 2019 per Mac, Word 2019 per Mac, PowerPoint 2019 per Mac, Excel 2016, Word 2016, PowerPoint 2016, InfoPath 2013
How do I clear the cache or locally reset/refresh the client/app?
If you are seeing incomplete or incorrect data please try force close and reopen the app. If that doesn't work, then you can try to reset the account on the device:
Si applica a: Outlook per Android, Outlook per iOS
使用 Windows 10 中的 Internet Explorer - Microsoft 支援服務
Internet Explorer 11 將於 2022 年 6 月 15 日終止支援。 建議您使用 Microsoft Edge,以獲得更快、更安全以及更現代化的網頁瀏覽體驗。
Microsoft Start and MSN feedback – frequently asked questions
That shouldn’t happen, but if it does, please help us fix it by sending a message through our feedback tool. You can access the feedback tool via a button in the bottom right-hand corner of any Microsoft Start or MSN page, and also through the settings cog at the top right-hand corner of the MSN homepage. Describe the problem in as much detail as possible, because without that detail it is ...
Third party cookie inventory - Microsoft Support
We and third parties use social media cookies to show you ads and content based on your social media profiles and activity on our websites. They’re used to connect your activity on our websites to your social media profiles so the ads and content you see on our websites and on social media will better reflect your interests.