Wenn Sie eine Datei nicht finden können oder eine Datei versehentlich geändert oder gelöscht haben, können Sie sie aus einer Sicherung (falls Sie Windows-Sicherung verwenden) oder aus einer Vorgängerversion wiederherstellen. Vorgängerversionen sind Kopien von Dateien und Ordnern, die Windows automatisch im Rahmen eines Wiederherstellungspunkts speichert.

準備安裝了嗎？ 開始之前，請確定您的PC或Mac符合 系統需求。 如果您已兌換產品密鑰、只是重新安裝應用程式，或是知道您已透過公司或學校指派授權，您可以跳到登入以 下載並安裝 Microsoft 365 或 Office 章節。 不過，如果這是您 第一次 安裝 Microsoft 365或 Office，您可能需要先執行一些步驟。

More resources. Learn common SharePoint Online tasks with these videos and tutorials, and get links to more training for SharePoint and Office 365.

Signing in with Microsoft. Get help with signing in, locked or compromised accounts, linked accounts, closing, reopening, and updating your security info and account profile. Get Microsoft account help. Manage your personal account from a single dashboard, including payment information, purchases, subscriptions, and more. Go to your dashboard.

In order to download a LIP for Internet Explorer, you need to have a matching Windows LIP. For more information, see Download languages for Windows . Internet Explorer 11 is currently available in the following LIP languages. To download the offline installer for Internet Explorer 11, choose your language and system below.

To sum a column of numbers, select the cell immediately below the last number in the column. To sum a row of numbers, select the cell immediately to the right. AutoSum is in two locations: Home > AutoSum, and Formulas > AutoSum. Once you create a formula, you can copy it to other cells instead of typing it over and over.

在此期间，登录到你的帐户以查看最新的退款请求状态。. . 在 Xbox 主机上进行购买时，你在尝试更改支付选项的安全代码时收到以下错误代码和消息：. CP205. 此支付选项有误。. 请使用另外一种方式或新方式支付。. 如果有任何问题，请咨询你的银行。. 这意味着 ...

Free Excel for the web templates. Excel for the web. You don’t have to start from scratch if you start with a free template Microsoft Create. Choose from an assortment of templates like calendars, invoices, and budget planning. Go to Create.Microsoft.com. Click Templates at the top of the page. On the Templates page, click Excel.

操作方法如下：. 转到" 开始 "，输入 "设备 管理器"，然后从结果列表中选择它。. 在“设备管理器”中，找到你的设备，长按（或右键单击）该设备，选择“更新驱动程序”，再选择“自动搜索更新的驱动程序软件”，然后按照剩余步骤进行操作。. 如果蓝牙已 ...

Windows에서 Bluetooth 장치 페어링. Windows 11 Windows 10 Windows 8.1 Windows 7. 키보드, 마우스, 휴대폰, 스피커 등 모든 종류의 Bluetooth 장치를 PC와 페어링할 수 있습니다. 이렇게 하려면 PC에 Bluetooth가 있어야 합니다. 노트북, 태블릿 등의 일부 PC에는 Bluetooth가 기본 제공되어 ...