Check the device. If the device doesn't appear to work at all (no lights appear on the device when it’s plugged in, or the cursor doesn't move or doesn't appear on the screen), connect the device to another PC and make sure the device works on that PC.

If you see a Let's get started screen with options to try, buy, or activate Office, this means that Office is installed on your new PC as a 1-month trial of Microsoft 365 Family. You won't receive a product key from your PC manufacturer unless you paid for an Office product key card. Instead, you can start a trial of Microsoft 365 Family, or buy Office.

After you set up your security verification methods for your work or school account, you can update the related details. Using the Security info page

Switch Real-time protection to Off.Note that scheduled scans will continue to run. However, files that are downloaded or installed will not be scanned until the next scheduled scan.

重要: 在选择从媒体启动之前，应验证设备是否满足最低系统要求，因为满足后才允许安装 Windows 11，如果你至少具有 TPM 1.2（而不是最低系统要求的 TPM 2.0），它将不会根据处理器的系列和模型验证处理器是否在批准的 CPU 列表上。

Tip: In Windows 7, you can synchronize your computer clock with an Internet time server to keep the computer clock up to date.To do this, select the date or time in the bottom right-hand corner of your screen, and then select Change date and time settings.Select the Internet Time tab, select Change settings, select Synchronize with an Internet time server, and then select Update now.

When you run Excel in safe mode, it bypasses functionality and settings such as alternative startup location, changed toolbars, startup folders used by Excel, Excel add-ins, and most COM add-ins. While add-ins can enhance your experience, they can occasionally interfere, or conflict with Excel. You can safe mode troubleshoot in one of two ways:

In the search box on the taskbar, type Manage BitLocker and then select it from the list of results. Or, select the Start button, and then under Windows System, select Control Panel.In Control Panel, select System and Security, and then under BitLocker Drive Encryption, select Manage BitLocker. Note: You'll only see this option if BitLocker is available for your device.

Download information. The following files are available for download from the .NET Download site: Download the Microsoft .NET Framework 4.8 offline installer package now.

Note: The options listed in this wizard vary depending on the key selected.For example, since you cannot reassign the Windows key, the only option available is to disable it.