Start your PC in safe mode in Windows - Microsoft Support
Safe mode starts Windows in a basic state, using a limited set of files and drivers. If a problem doesn't happen in safe mode, this means that default settings and basic device drivers aren't causing the issue. Observing Windows in safe mode enables you to narrow down the source of a problem, and can help you troubleshoot problems on your PC.
Use System Restore - Microsoft Support
Use System restore to make restore points when you install a new app, driver, or Windows update, and when you create a restore point manually. Restoring won’t affect your personal files, but it will remove apps, drivers, and updates installed after the restore point was made. To go back to a restore point:
Using IF with AND, OR, and NOT functions in Excel
Examples. Following are examples of some common nested IF(AND()), IF(OR()) and IF(NOT()) statements in Excel. The AND and OR functions can support up to 255 individual conditions, but it’s not good practice to use more than a few because complex, nested formulas can get very difficult to build, test and maintain.
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, Excel Web App, Excel for Windows Phone 10
最新の Windows Update を入手する - Microsoft サポート
Microsoft では、制御された機能ロールアウト (CFR) など、いくつかのサービス テクノロジを介してセキュリティ以外の更新プログラム、修正プログラム、機能強化、および機能強化が提供されるため、Windows デバイスは異なる時点で新しい機能を取得する可能性があります。
Hotmail にサインインする方法 - Microsoft サポート
Hotmail が Outlook.com になりました。 Hotmail アカウントにサインインするには、[ www.outlook.com] に移動し、[サインイン] を選択 します。 ユーザー名またはパスワードを忘れた場合は、 サインインのトラブルシューティング ツールを使用しますが、2 年以上アカウントにサインインしていない場合は ...
Applies To:
Outlook.com
Use the Office offline installer - Microsoft Support
Step 2. Install Office. Select the Microsoft 365 folder from the virtual drive and then double-click either the Setup32.exe to install the 32-bit version of Microsoft 365, or Setup64.exe to install the 64-bit version to begin the offline installation. If you're not sure which version is right for you, see Choose the 64-bit or 32-bit version of Office. ...
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
激活 Windows - Microsoft 支持
若要在 Windows 11 中检查激活状态，请选择“开始 ”按钮，然后选择“设置 > 系统 ” ，然后选择“激活 ”。 。 激活状态将在“激活”旁边列出。 在“设置”中检查激活状态. 你将在“激活”页面上看到以下一条激活状态消息：
Use the System File Checker tool to repair missing or corrupted system ...
Swipe in from the right edge of the screen, and then tap Search.Or, if you are using a mouse, point to the lower-right corner of the screen, and then click Search.Type Command Prompt in the Search box, right-click Command Prompt, and then click Run as administrator.If you are prompted for an administrator password or for a confirmation, type the password, or click Allow.
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。
Fix Ethernet connection problems in Windows - Microsoft Support
If you can't connect to the Ethernet network on either PC, it might be a problem with your router, internet service provider, or USB to Ethernet adapter. 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 ...