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Recover lost or deleted files - Microsoft Support
Recover lost or deleted files. Windows 7. Note: If you've recently updated Windows 10 and are having problems finding files, see Find lost files after the upgrade to Windows 10. If you can't find a file on your computer or you accidently modified or deleted a file, you can restore it from a backup (if you're using Windows backup) or you can try ...
Create a system restore point - Microsoft Support
Windows 10. In the search box on the taskbar, type Create a restore point, and select it from the list of results. On the System Protection tab in System Properties, select Create. Type a description for the restore point, and then select Create. Create a system restore point.
Reset a forgotten Microsoft account password
Select Get code. Microsoft will send a verification code to the email or phone number you selected. Go to the recovery phone or email for where you expect to receive the code. 4. Enter code and reset password. Confirm the code to create a new password. Learn how to create a strong password. Paste or type the code you received and select Next.
适用于: Microsoft 帐户仪表板
Update Windows - Microsoft Support
Update Windows. In Windows 11, you decide when and how to get the latest updates to keep your device running smoothly and securely. To manage your options and see available updates, select Check for Windows updates. Or select Start > Settings > Windows Update . Here's some other info you might be looking for:
Getting ready for the Windows 11 upgrade - Microsoft Support
To check if Windows 11 is ready for your device, go to Start > Settings > Update & Security > Windows Update and select Check for updates. If the upgrade is available for your device and you want to proceed, download and install it. Note: Downloading and installing Windows 11 will most likely take longer than a typical Windows 10 feature update.
重置忘记的 Microsoft 帐户密码 - Microsoft 支持
重置忘记的 Microsoft 帐户密码. 如果知道密码,但只想更改密码,请转到 “account.microsoft.com 安全 ”选项卡,然后选择“ 更改我的密码 ”。. 如果知道用户名和密码但已停止工作,请阅读 我的用户名和密码已停止工作 。. 1. 选择“忘记了密码?. 如果“输入密码 ...
适用于: Microsoft 帐户仪表板
デスクトップの背景画像を変更する - Microsoft サポート
Windows 設定アプリを使用して、デスクトップの背景と色を変更します。 注: Windows スポットライト オプションを選択できない場合は、管理者が機能を無効にしているか、まだ更新プログラムを取得していない可能性があります。 この機能は、一定期間にわたってロールアウトされています。
Calculate the difference between two dates - Microsoft Support
Use the DATEDIF function when you want to calculate the difference between two dates. First put a start date in a cell, and an end date in another. Then type a formula like one of the following. Warning: If the Start_date is greater than the End_date, the result will be #NUM!.
适用于: Microsoft 365 专属 Excel, Excel 2021, Excel 2019, Excel 2016
Clipboard in Windows - Microsoft Support
Select Start > Settings > System > Clipboard. Select Sync across devices and toggle it on. Select Automatically sync text that I copy. The sync feature is tied to your Microsoft account, or your work account, so remember to use the same login information on all your devices. Learn how to use the cloud-based clipboard in Windows, share clipboard ...
Use Internet Explorer in Windows 10 - Microsoft Support
If you can't find Internet Explorer on your device, you'll need to add it as a feature. Select Start > Search , and enter Windows features. Select Turn Windows features on or off from the results and make sure the box next to Internet Explorer 11 is selected. Select OK, and restart your device. Internet Explorer 11 support ended on June 15, 2022.