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Install Windows 7 Service Pack 1 (SP1) - Microsoft Support
To manually install SP1 from Windows Update: Select the Start button > All programs > Windows Update. In the left pane, select Check for updates. If any important updates are found, select the link to view available updates. In the list of updates, select Service Pack for Microsoft Windows (KB976932) and then select OK.
Turn on device encryption - Microsoft Support
In the search box on the taskbar, type Manage BitLocker and then select it from the list of results. Or, select the Start button, and then under Windows System, select Control Panel.In Control Panel, select System and Security, and then under BitLocker Drive Encryption, select Manage BitLocker. Note: You'll only see this option if BitLocker is available for your device.
Find and open File Explorer - Microsoft Support
To check it out in Windows 11, select it on the taskbar or the Start menu, or press the Windows logo key + E on your keyboard. How to use File Explorer: To pin a folder to Quick access, right-click (or press and hold) the folder and select Pin to Quick access. To share a file, select it, then select Share on the ribbon.
下载Microsoft Authenticator - Microsoft 支持
在 Android 设备上安装 Authenticator. Google Play 商店在中国不可用,因此只能从以下商店下载Microsoft Authenticator:. 百度. 联想. 华为. Samsung. 注意: 我们会尽量使所有应用商店版本保持最新状态,但Microsoft不对其他网站上提供的版本负责。.
Recover an earlier version of a Word file - Microsoft Support
If the AutoRecover option is turned on, you can automatically save versions of your file while you’re working on it. How you recover something depends on when you saved it. If you’ve saved the file. Open the file you were working on.
适用于: Microsoft 365 专属 Word, Word 2021, Word 2019, Word 2016
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尋找您的 Windows 產品金鑰 - Microsoft 支援服務
解除安裝或重新安裝 Windows 7 或 Windows 8.1 時,通常需要產品金鑰。. 一般來說,如果您購買的是 Windows 的實體版本,產品金鑰應該會在 Windows 包裝盒內的標籤上或卡片上。. 如果 Windows 已預先安裝在電腦上,產品金鑰應該會顯示在裝置上的貼紙上。. 如果您遺失或 ...
适用于: Microsoft 帐户仪表板
Contact us | Xbox Support
Need help with an Xbox console, an Xbox game, or Xbox network? Find out how to get in touch with us.
Fix problems that block programs from being installed or removed ...
The Program Install and Uninstall troubleshooter helps you automatically repair issues when you're blocked from installing or removing programs. It also fixes corrupted registry keys. First, you'll need to download the troubleshooter. Download troubleshooter. If you see the File Download box when you start downloading, select Run or Open.
Check your device performance and health in Windows Security
The Health report starts off by showing you the last time a Device Health scan was run. The time displayed should be basically the current time, as Windows Security tries to run a Device Health scan when you open the Device performance & health page.. Beyond the time of last scan you'll see the status of the key areas that Device Health monitors: