Si vous avez acheté Windows 10 ou Windows 11 Professionnel mise à niveau dans l’application Microsoft Store, vous recevrez une licence numérique au lieu d’une clé de produit dans l’e-mail de confirmation envoyé pour confirmer l’achat.

注意: 如果连接到电脑的设备（例如显示器、打印机或扫描仪）在从睡眠状态或休眠状态唤醒后不能正确工作，你可能需要先断开设备连接并重新连接或重新启动电脑。还应确保你具有适用于所有设备的最新驱动程序。

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If it's hard to read the product key on your packaging, use this guide to help you tell the numbers and letters apart: If your Office product key doesn’t work, or has stopped working, you should contact the seller and request a refund.

Choose from a list of standard headers or footers, go to the list of Header or Footer options, and select the header or footer that you want. Or, create your own header or footer by selecting Edit Header or Edit Footer.

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You can create a simple formula to add, subtract, multiply or divide values in your worksheet. Simple formulas always start with an equal sign (=), followed by constants that are numeric values and calculation operators such as plus (+), minus (-), asterisk (*), or forward slash (/) signs.The following is an example of a simple formula.

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The Family options feature in Windows Security provides you with easy access to tools to manage your children’s digital life. Use Family options to help keep your children’s devices clean and up to date with the latest version of Windows 10 and to protect your kids when they’re online.

If the status of your order is Shipped, check for a Track Shipping link below the status.Pending orders may require updated information or change of payment method. Recent purchases may not have a status right away. Check back later to see the progress of your order. How soon will my items ship?