查找 Windows 7 或 Windows 8.1 的产品密钥. 卸载或重新安装 Windows 7 或 Windows 8.1 时，通常需要产品密钥。. 通常，如果购买的是实物 Windows 拷贝，产品密钥应该在标签上或者在 Windows 随附包装盒中的卡上。. 如果 Windows 已预先安装在计算机上，产品密钥应显示在设备 ...

When you accidentally delete an email message in Outlook, you can recover the message if it's still in your Deleted Items folder. In some cases, you can even recover items after the Deleted Items folder is emptied. You can also recover a deleted folder (with all of its messages) if it's still in your Deleted Items folder.

There are four ways to open Snipping Tool: Select the Start button, enter snipping tool, then select Snipping Tool from the results. Press Windows logo key + Shift + S for a static image snip. Press Print Screen ( PrtSc ) for a static image snip. Press Windows logo key + Shift + R for a video snip.

Prepare your Windows 11 device for a hardware change. First, follow these steps to find out if Windows 11 is already activated. Select the Start button, then select Settings > System > Activation . Open Activation settings. If you're not activated, complete the activation process with the steps you see on the Activation page.

Mettez à jour Windows. Windows 11 vous permet de choisir quand et comment obtenir les dernières mises à jour, pour assurer la sécurité et le bon fonctionnement de votre appareil. Pour gérer vos options et afficher les mises à jour disponibles, sélectionnez Rechercher les mises à jour Windows. Vous pouvez également sélectionner ...

Windows 10 照片查看器. Windows 照片查看器未包含在 Windows 10 中，但如果你是从 Windows 7 或 Windows 8.1 进行升级，你的电脑可能仍可使用它。. 若要确认，请在文件资源管理器中长按（或右键单击）某张照片，然后选择“打开方式”。. 如果 Windows 照片查看器不在列表中 ...

Установка и использование сканера в Windows 10. Как правило, подключив сканер к устройству или добавив новый сканер в домашнюю сеть, вы можете сразу начать сканирование изображений и ...

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 ...

sum_range Optional.The actual cells to add, if you want to add cells other than those specified in the range argument. If the sum_range argument is omitted, Excel adds the cells that are specified in the range argument (the same cells to which the criteria is applied).. Sum_range should be the same size and shape as range.If it isn't, performance may suffer, and the formula will sum a range of ...

You'll need: A OneDrive storage location. Internet access. Move files to a new Windows PC using an external storage device. You'll need: An external hard drive or network drive. Note: If you're moving from a Windows 7 PC rather than a Windows 10 PC, see Moving to a Windows 10 PC for info on how to bring your files with you.