This problem is due to incomplete installation of the OS driver. Please ensure that you have installed the correct Bootcamp version (refer to Apple Support for more information), and if any OS driver is improperly installed in Device Manager. To properly install those drivers, please refer to either of the following two methods.
1. Please download corresponding software from Apple website.
2. Please ensure a stable Internet connection while executing Bootcamp. Tick "Download the latest Windows support software from Apple" in Select Tasks.