What are the methods for disabling U disk

Everyone knows the simplicity of U disk use, but sometimes you have to disable the U disk in order to protect the data in the computer. Here are some ways to disable the U disk: One: Right click on my computer--> Manage, then select Device Manager --> Universal Serial Bus Controller --> There are two usb root hubs to disable these two items inside: General --> Device Method --> Deactivate 2: Open Start "Run" Enter REGEDIT, find "HKEY_LOCAL_MACHINE\\SYSTEM\\CurrentControlSet\\Services\\USBSTOR\\Start",4,"REG_DWORD" Change the key value start from 3 to 4. Three: restart the system, press Delete, enter the BIOS, disable USB. Because there are many kinds of BIOS, don't say it, the specific disabling method is very simple ~~ four: download system settings software such as super rabbit, select --> super rabbit Magic Settings-->Files & Media-->U Disk-->Do not use U disk savings function