2024 年 4 月 23 日针对 Windows 11 版本 22H2 和 Windows 11 版本 23H2 的更新包括.NET Framework 3.5 和 4.8.1 中的安全性和累积可靠性改进。 我们建议你将此更新作为定期维护工作的一部分进行应用。

Windows 10. Tablet mode makes Windows 10 more touch-friendly when using your device as a tablet. Select action center on the taskbar (next to the date and time), and then select Tablet mode to turn it on or off. Use your PC like a tablet. To turn Tablet mode on or off, select action center on the taskbar and then select Tablet mode.

Windows 8.1支持将于 2023 年 1 月 10 日结束 终止对以前版本的 Windows 的支持 服务版本的 Windows 10：常见问题解答 终止对以前版本的 Windows 的支持 为升级 Windows 11 准备就绪 更多支持选项 ...

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 ...

VLOOKUP 第一个参数是要查找的值。. 此参数可以是单元格引用，也可以是固定值，例如“smith”或 21,000。. 第二个参数是单元格搜索范围 C2-:E7，VLOOKUP 在其中搜索要查找的值。. 第三个参数是单元格范围内包含所查找值的列。. 第四个参数可选。. 输入 True 或 False ...

August 8, 2023 — KB5029649 Cumulative Update for .NET Framework 3.5, 4.8, 4.8.1 for Windows 10 Version 22H2; July 25, 2023 — KB5028412 Cumulative Update Preview for .NET Framework 3.5, 4.8, 4.8.1 for Windows 10 Version 22H2; July 11, 2023 — KB5028937 Cumulative Update for .NET Framework 3.5, 4.8, 4.8.1 for Windows 10 Version 22H2

Windows 10. In the search box on the taskbar, type device manager, then select Device Manager from the menu. Open Device Manager.

Keeping Bing as your default search engine provides an enhanced search experience in the new Microsoft Edge , including direct links to Windows apps, relevant suggestions from your organization if you’re signed in with a work or school account, and instant answers to questions about Windows.However, you can change the default search engine to any site that uses OpenSearch technology.

To sign out, go to Outlook.com. Select your account initials or account picture at the top corner of your Inbox. Select Sign out. Tips: If you don't see your picture at the top of screen, check to see if ad blocking is turned on. Sometimes this prevents the picture from showing. If you don't see see Profile or Account options, you can access ...

First, launch Windows Backup: select Start , type windows backup, and select Windows Backup from the results. (Or you can select Start > All apps > Windows Backup .) Then select Folders to drop it down, and select which of your user folders you want to back up to OneDrive: You can back up your Desktop, Documents, Pictures, Videos, and Music ...