Find your Windows product key - Microsoft Support
Generally, if you bought a physical copy of Windows, the product key should be on a label or card inside the box that Windows came in. If Windows came preinstalled on your PC, the product key should appear on a sticker on your device. If you’ve lost or can’t find the product key, contact the manufacturer. To ensure your product key is ...
Applies To:
Microsoft account dashboard
在电脑上添加或删除帐户 - Microsoft 支持
在 “工作或学校用户 > 添加工作或学校帐户 ”下，选择“ 添加帐户 ”。. 输入此人的用户帐户，选择帐户类型，然后选择“ 添加 ”。. 如果需要从你的电脑中删除此人的登录信息：. > 其他用户 > “帐户 ”中选择 “开始 > 设置 ”。. 选择此人的姓名或电子邮件 ...
Introducing Microsoft Phone Link and Link to Windows
The Link to Windows app is preinstalled on select Samsung, HONOR, Surface Duo, and OPPO devices that are running Android 9.0 or later. On such devices, you can find the Link to Windows app under the Quick Settings menu by swiping down from the top of your screen. For all other Android devices running Android 7.0 or later, download the new Link ...
Give your PC a Fresh Start - Microsoft Support
To reset your PC, go to Start > Settings > System > Recovery . Next to Reset this PC , select Reset PC. Then, select Keep my files, choose cloud or local, change your settings, and set Restore preinstalled apps? to No . Open Recovery settings. Note: If you don't see the option to Restore preinstalled apps, it means your PC doesn't have ...
Windows Update Troubleshooter - Microsoft Support
Learn how to run Windows Update Troubleshooter to resolve errors downloading or installing Windows updates.
Contact - Microsoft Support
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Create a form in Word that users can complete or print
In Word, you can create a form that others can fill out and save or print. To do this, you will start with baseline content in a document, potentially via a form template. Then you can add content controls for elements such as check boxes, text boxes, date pickers, and drop-down lists. Optionally, these content controls can be linked to ...
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
在 Excel 中将 IF 与 AND、OR 和 NOT 函数配合使用 - Microsoft 支持
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)，或只有一个条件需要为 True 或 False (OR)，或者如果想要检查某个条件是否不 (NOT) 符合你的条件，这时该怎么做呢？这三个函数均可以单独使用，但它们更常见于与 IF 函数成对使用。
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
Windows でアプリとプログラムをアンインストールまたは削除する - Microsoft サポート
マルウェアを削除しようとしている場合は、「Windows セキュリティで保護された状態を維持する」を参照して、スキャンを実行する方法を確認してください。 別のウイルス対策ソフトウェア プログラムを使用している場合は、そのプログラムのウイルス対策オプションを確認してください。
Contact Us - Microsoft Support
Select the product you need help with. We'll show you self-help options first. Additional help is available if you need it, including live chat with a Microsoft specialist. Microsoft 365. Office. Windows. Xbox. Surface devices. Copilot.