Go to office.com, and sign in to your work or school account. In the upper left corner of the window, select the app launcher > All apps > SharePoint. Tip: If you don't see the SharePoint app under All apps, use the Search box near the top of the window to search for SharePoint. For more information, see Where to sign in to Microsoft 365.

Right click the network icon in the right side of the taskbar and select Diagnose network problems or open Get Help for Network & Internet. Make sure Wi‑Fi is turned on. Select the No internet icon on the right side of the taskbar, and make sure Wi-Fi is turned on. If it isn't, select it to turn it on. Also, make sure Airplane mode is turned off.

Chat or receive a call back from a technical support expert: If you have a Microsoft 365 Basic, Microsoft 365 Personal, or Microsoft 365 Family subscription, get questions answered from anywhere via chat or request to receive a call back from one of our technical support experts. See the table below for the type of support you can get depending ...

Recover lost or deleted files. Windows 7. Note: If you've recently updated Windows 10 and are having problems finding files, see Find lost files after the upgrade to Windows 10. If you can't find a file on your computer or you accidently modified or deleted a file, you can restore it from a backup (if you're using Windows backup) or you can try ...

在 Excel 中将 IF 与 AND、OR 和 NOT 函数配合使用. 在 Excel 中，IF 函数允许通过测试某个条件并返回结果（如果该条件为 True 或 False），在值和预期值之间进行逻辑比较。. 但如果需要测试多个条件，例如我们假设所有条件都需要为 True 或 False ( AND )，或只有一个条件 ...

Download Microsoft Defender on your devices either by: Scanning the following QR code. Searching for Microsoft Defender in your app store. Sharing with your devices, the following link: Copy link. We encourage you to install Microsoft Defender on at least five devices per person. Important: This article is about the Microsoft Defender app that ...

To turn on Windows Hello. Go to Start > Settings > Accounts > Sign-in options. Select the Windows Hello method that you want to set up, Select Set up. If you don't see Windows Hello in Sign-in options, then it may not be available for your device. Windows Hello does require a compatible camera or fingerprint reader.

If that doesn't work, or your camera is built in on your device, try this: Select Start , type device manager, then select it from the search results. Find your camera under Cameras, Imaging devices , or Sound, video and game controllers. If you can't find your camera, select the Action menu, then select Scan for hardware changes.

On the View tab, select View settings. Select Accounts > Email accounts. From the email accounts pane, you can now select the option to Add account, Manage an existing account. Select Add Account, then in the Suggested account dropdown, add the Gmail account you want to add, and select Continue. Follow the prompts to complete the process.

Note: Recovery drives created and used on machines with the April 9, 2024 security update and the revocation policy applied may be impacted.For more, see KB5025885: How to manage the Windows Boot Manager revocations for Secure Boot changes associated with CVE-2023-24932.