Fix your Outlook email connection by repairing your profile
On the Email tab, choose your account (profile), and then choose Repair.
Applies To: Outlook for Microsoft 365, Outlook 2021, Outlook 2019, Outlook 2016, Office for business, Office 365 Small Business, Microsoft 365 admin
Fix touchpad problems in Windows - Microsoft Support
If your touchpad isn’t working, it may be a result of a missing or out-of-date driver. Updating or reinstalling your touchpad drivers in Device Manager may help solve the problem. To open Device Manager, enter device manager in Search on the taskbar, then select Device Manager .
VLOOKUP function - Microsoft Support
Argument name. Description. lookup_value (required). The value you want to look up. The value you want to look up must be in the first column of the range of cells you specify in the table_array argument. For example, if table-array spans cells B2:D7, then your lookup_value must be in column B.. Lookup_value can be a value or a reference to a cell.. table_array (required)
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
Recover and restore deleted items in Outlook - Microsoft Support
If you don't see the deleted messages you want to recover, they have probably been permanently removed from the Deleted Items folder or Junk Email folder. We don't recommend that you use either of these folders to store your messages. If you want to store your messages in folders other than your Inbox, see Working with message folders.
Applies To: Outlook for Microsoft 365, Outlook 2021, Outlook 2019, Outlook 2016, Outlook on the web, Office 365 operated by 21Vianet, Outlook.com, New Outlook for Windows
查看和删除 Microsoft Edge 中的浏览器历史记录 - Microsoft 支持
信息类型. 将删除的内容. 存储的内容. 浏览历史记录. 所访问站点的 url,以及每次访问的日期和时间。 在你的设备上(如果打开了同步,则在所有已同步设备上)
Contact - Microsoft Support
Contact Microsoft Support. What's new. Surface Pro; Surface Laptop; Surface Laptop Studio 2
Faster and more secure Wi-Fi in Windows - Microsoft Support
Tip: You can also check to see what your network adapter supports by opening the Command Prompt (or Terminal), and then typing the command netsh wlan show drivers.Look next to Radio types supported and see if it includes 802.11be (for Wi-Fi 7) or 802.11ax (for Wi-Fi 6/6e) and look under Authentication and cipher supported in infrastructure mode and see if it includes WPA3 Personal and WPA3 ...
Get help with Windows activation errors - Microsoft Support
Notes: If you don't see Go to Microsoft Store on the Activation page, contact your organization's support person.. If you made a substantial hardware changes to your device (such as replacing the motherboard) and you have a valid product key, try to activate Windows by phone.
Virus & threat protection in Windows Security - Microsoft Support
Manage your Virus & threat protection settings. Use Virus & threat protection settings when you want to customize your level of protection, send sample files to Microsoft, exclude trusted files and folders from repeated scanning, or temporarily turn off your protection.. Manage your real-time protection. Want to stop running real-time protection for a short while?
Applies To: Microsoft account dashboard
更新到新Microsoft Edge - Microsoft 支持
如果我的设备上没有管理员权限,该怎么办? 若要完全升级到新的 Microsoft Edge,必须使用管理员帐户登录到设备。