How does the computer switch mode change?

Control Panel/User Accounts/Change how users log in or log out.

Select Use Welcome Screen and Use Fast User Switching.

Press the "Application Options" button (if you can't set it, you may have used the service of Netware "Client", and you can uninstall it as follows).

Netware is a network operating system introduced by NOVELL Company. This is the "client" network component of Netware. After installation, you cannot use the welcome screen. Just uninstall.

Unloading method:

Right-click My Network Places-Properties-right-click Local Area Connection-Properties-On the General tab, find the following item that NetWare protocol uses in this connection, click it with the mouse, and then click Uninstall.

A prompt appears: "Are you sure you want to uninstall the client service?" , click "Yes"

A prompt appears: "In order for the new settings to take effect, you must shut down and restart your computer. at present

Restart the computer? ",click" No "

Control Panel/User Accounts/Change how users log in or log out.

Select Use Welcome Screen and Use Fast User Switching.

Press the Apply Option button.

If it is not caused by the above problems, it may be caused by the software you recently installed. If you try to uninstall completely, you still can't restore the system or reinstall it.

Use the system restore method that comes with the system:

System Restore: Start/Programs/Accessories/System Tools/System Restore, click Restore my computer to an earlier time, and then click Next. You will see that the date page has a dark date, which is the restore point. After it is selected, click Next to restore the system (Win7), and then select the device and security sub-options in the control panel.