转到 Microsoft 网站上的 Windows 7 Service Pack 1 下载页面 。 选择与 Windows 7 版本相对应的 “下载 ”链接。 选择每个下载链接并将其保存到电脑。 准备好安装 SP1 后，请运行从站点下载的.exe文件。 然后按照说明安装 SP1。 你的电脑可能在安装期间重启 ...

If you don't have a desktop PC and the slider doesn't appear or work, try updating the display driver. Select Search on the taskbar, type Device Manager, and then select Device Manager from the list of results.In Device Manager, select Display adapters, then select the display adapter.Press and hold (or right-click) the display adapter name, then select Update driver and follow the instructions.

To pin apps to the taskbar. Select Start , select the arrow next to All apps, right-click the app, then select More > Pin to taskbar.

In quick settings: To find the quick setting for Bluetooth, select the Network, Sound, or Battery icons ( ) next to the time and date on the right side of your taskbar.Select Bluetooth to turn it on. If it's turned on without any Bluetooth devices connected, it might appear as Not connected . If you don't see Bluetooth in quick settings, you might need to add it.

Next to the password you want to change, select More actions , and then select Edit.

Find operating system info in Windows 8.1 or Windows RT 8.1. To find out which version of Windows your device is running, press the Windows logo key key + R, type winver in the Open box, and then select OK.. If your device is running Windows 8.1 or Windows RT 8.1, here’s how to learn more:

如果这是你第一次安装Microsoft 365 或 Office，则可能必须完成一组预安装步骤，或者可能需要遵循不同于下面所示的步骤。 你执行的操作取决于你的 Microsoft 365 或 Office 副本是家庭 产品还是商业 产品，以及你是否拥有仍需要兑换的产品密钥、已与产品关联的帐户或预分配的许可证。

Beispiele. Im Folgenden finden Sie Beispiele für einige gängige geschachtelte IF(AND()-, IF(OR()) - und IF(NOT())-Anweisungen in Excel. Obwohl die Funktionen UND und ODER bis zu 255 einzelne Bedingungen unterstützen können, wird von der übermäßigen Verwendung abgeraten, da sich die Erstellung, Überprüfung und Verwaltung komplexer, geschachtelter Formeln als schwierig erweisen kann.

Learn how to find your Windows product key for activation or when to use a digital license instead.

Examples. Following are examples of some common nested IF(AND()), IF(OR()) and IF(NOT()) statements in Excel. The AND and OR functions can support up to 255 individual conditions, but it’s not good practice to use more than a few because complex, nested formulas can get very difficult to build, test and maintain.