Fix Ethernet connection problems in Windows - Microsoft Support
On your home router. Try these things first to help you fix or narrow down the connection problem. Check the Ethernet cable and connection.Make sure the Ethernet cable is securely plugged into the Ethernet port on both your router and Windows 11 PC.
Uninstall Office from a PC - Microsoft Support
Learn how to uninstall Office from a PC using the Control Panel or with the uninstall support tool.
Applies To: Office 2021, Office 2019, Office 2016, Microsoft 365 for home, Office for business, Office 365 Small Business, Microsoft 365 admin, Office 365 operated by 21Vianet, Office 365 operated by 21Vianet - Small Business Admin, Office 365 operated by 21Vianet - Admin, Office 365 Germany - Enterprise, Office 365 Germany - Enterprise admin
Pair a Bluetooth device in Windows - Microsoft Support
Learn how to connect a Bluetooth device in Windows and adjust Bluetooth pairing settings.
Change or reset your password - Microsoft Support
Learn how to change or reset your Windows password if you've forgotten or lost it.
Insert a signature - Microsoft Support
How to add a signature to your Word documents. You can also use the Signature Line command in Word to insert a line to show where to sign a document.
Applies To: Word for Microsoft 365, Word for Microsoft 365 for Mac, Word 2021, Word 2021 for Mac, Word 2019, Word 2019 for Mac, Word 2016
Which version of Windows operating system am I running?
Learn how to find which version of Windows operating system your PC is running and device specifications.
Open the Start menu - Microsoft Support
To open the Start menu—which contains all your apps, settings, and files—do either of the following: On the left end of the taskbar, select the Start icon.
Outlook.com に対してサインインまたはサインアウトする方法
Outlook.com、Hotmail、Live、または MSN のメール アカウントにサインインできない場合、サインインまたはサインアウトする方法がわからない場合は、次の解決方法を試してみてください。
Applies To: Outlook.com
Troubleshoot problems updating Windows - Microsoft Support
Learn how to troubleshoot problems updating Windows. Find answers to common questions and issues installing Windows updates.
Configure Windows Hello - Microsoft Support
Learn how to sign into your PC with Windows Hello using a PIN, facial recognition, or fingerprint.