recently, users of the Win7 system have found that when the machine is turned on, the bottom right corner of the desktop will jump out of the USB root hub prompt. Sometimes it even pops up Microsoft USB 2.0 host controller simulator has been safely removed, and if you open Device Manager you will find the Microsoft USB 2.0 host controller simulator as an exclamation point. What should I do about it?
Workaround:
1, reinstall the motherboard driver and USB drive (must be for your motherboard model and system version from the official website to download), or use the Driver Wizard scan whether there is no drive hardware and solve;
2, if cannot drive or cannot solve the problem, then can deactivate the Microsoft USB 2.0 host controller simulator in the Device Manager;
3, installation Please install Intel RST driver (specific can Baidu).
Through the above methods to eliminate the problem, if it can not be resolved can only reload the system, of course, if friends have a more convenient way, welcome to the small group message interaction Oh.