尋找 Windows 8.1 或 Windows RT 8.1 中的作業系統資訊. 若要了解您的裝置正在執行 Windows 的哪個版本，請按 Windows 標誌鍵 按鍵 + R，在 [開啟] 方塊中輸入 winver，然後選取 [確定]。 如果裝置執行的是 Windows 8.1 或 Windows RT 8.1，以下說明如何了解更多：

Leave your Android device in your pocket the next time it rings — pick up the call from your PC instead. Calling requires Bluetooth capability on both your PC and on your Android device, so make sure you have it turned on for both.

Get Microsoft billing support. Find help with Microsoft Store purchases, subscriptions, refunds, payment options, and checking your order history.

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.

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.

Select the Windows Security app from the search results, go to Virus & threat protection, and under Virus & threat protection settings select Manage settings.

Contact Microsoft Support. What's new. Surface Pro; Surface Laptop; Surface Laptop Studio 2

Things to try first. Try these things first to help you fix or narrow down the connection problem. Run Get Help to troubleshoot and fix common connection problems. Right click the network icon in the right side of the taskbar and select Diagnose network problems or open Get Help for Network & Internet

To do this. Press. Move to the Tell me or Search field on the ribbon and type a search term for assistance or Help content.. Alt+Q, then enter the search term. Open the File menu.. Alt+F. Open the Home tab and format text and numbers and use the Find tool.. Alt+H. Open the Insert tab and insert PivotTables, charts, add-ins, Sparklines, pictures, shapes, headers, or text boxes.

You can manage all of your Microsoft subscriptions in your Microsoft account dashboard. Select each subscription to change when and how you pay, or to see order history & receipts.