For a black screen, use the following keyboard shortcut: Windows logo key + Ctrl + Shift + B.

Set their account as a standard user: Your child might be set as an Administrator on the device. As an administrator they can change or break the Family Safety settings. Select > Settings > Accounts > Family & other users > Choose your child's account > Change account type > In the dialog choose Standard user and select ok to save the change.

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Tip: Creating an Outlook.com email address gives you a brand-new email address that is attached to your existing Microsoft account.This makes several benefits and features available to you within the Microsoft suite of products, particularly within Outlook. You might want to do this if your Microsoft account is not currently tied to an Outlook.com email address.

Microsoft generally releases the MSRT on a monthly cadence as part of Windows Update or as a standalone tool. (For exceptions, see Skipped releases.)Use this tool to find and remove specific prevalent threats and reverse the changes that they made (see Covered malware families).For comprehensive malware detection and removal, consider using Windows Defender Offline or Microsoft Safety Scanner.

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解决方案：若要删除意外字符或隐藏空格，请分别使用 CLEAN 或 TRIM 函数。 此外，验证单元格的格式是否为正确的数据类型。 你已使用数组公式而不按 Ctrl+Shift+Enter. 在 INDEX、 MATCH 或这两个函数的组合中使用数组时，必须按键盘上的 Ctrl+Shift+Enter。 Excel 将自动将公式括在大括号 {} 内。

Microsoft Edge is the recommended browser by Microsoft. Support for Internet Explorer ended on June 15, 2022. Internet Explorer 11 has been permanently disabled through a Microsoft Edge update on certain versions of Windows 10.

To get support in Outlook.com, click here or select Help on the menu bar and enter your query. If the self-help doesn't solve your problem, scroll down to Still need help? and select Yes.. To contact us in Outlook.com, you'll need to sign in.

解决激活错误. 如果 Microsoft 365 无法激活，其最后会变为未授权，且 Microsoft 365 的所有编辑功能都会被禁用。 Microsoft 可能由于多种原因变为未授权。