How to set up Win7 to make U disk unusable?

In the process of using the computer every day, we will use the U disk to store or copy the data, and then transfer the virus from the U disk to the computer, but it will inevitably encounter some problems during the use. To cause poisoning problems in the computer. In order to prevent this problem from happening, we can prohibit the operation of the USB flash drive. Below, Xiaobian for everyone to introduce a small way to make U disk can not run in Win7 system!

Operation steps:

1. Open the running window through the shortcut key combination of Win7 system and enter “ldedit;exe” in the pop-up window. Press Enter. The key can be as shown below:

2. In the pop-up "Registry Editor", expand "HKEY_LOCAL_MACHINE— SYSTEM— CurrentControlSet— services— USBSTOR" and find it on the right. Start & rdquo; item; as shown below:

3. Then double-click the "Start" option, in the pop-up "Edit DWORD (32-bit) value" window will be the default value "ld"; 3 & rdquo Change to “4”click “OK” button; as shown below:

The above is a small method for everyone to let the U disk can not run in Win7 system, in fact, The steps are very simple, just find the registry and set it in the registry.