1) The "Welcome to the Find New Hardware Wizard" always appears when the system is turned on after the new device driver is not installed correctly
2) The "Unknown Device" appears in the "System Devices" list of the device manager
3) The "Unknown Device" needs to be restarted when it is deleted, and the "Welcome to the Find New Hardware Wizard" still appears after the restart. And this "unknown device" cannot be deleted
Solution:
1. Install the corresponding driver or disable the device
1. Click Start/Run and type devmgmt.msc to see what the device with exclamation point is.
2. Install the corresponding driver. If you don't want to install the device, right-click the device and select Disable.
second, roll back to the previous driver
open the device manager.
double-click the device directory, and then double-click your device.
click the drivers tab, and then click rollback driver.
if you are asked if you want to roll back to the previous driver, click yes.