27 Jun 2012

Disable\Enable the USB drive in Windows 7


Sometimes it is necessary to Block or Disable the USB to prevent your PC from viruses and Trojans specially when it is in a crowded area like in Office, School or College.
Here, I'm gonna show you a simple trick to Disable/Enable the USB drive in your PC without any third party software by simply making changes in the Windows registry.


  • Open registry. Window Key+R > type regedit
  • Navigate to the following registry HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\USBSTOR
  • There in the right content pane search for REG_DWORD Start

  • Double click on it and a new small pop box will appear.
  • Change its value to 4 for Disable the USB
  • Change its value to 3 for Enable the USB
  • Sometimes a reboot will be required for the changes to make effect
Alternative Method:

Open Notepad
Copy the following code

reg add HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\USBSTOR /v Start /t REG_DWORD /d 4 /f


Save it as > block.bat
Again open notepad
Copy the following code

reg add HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\USBSTOR /v Start /t REG_DWORD /d 3 /f


Save it as unblock.bat

Click block.bat file > run as administrator to disable the USB drive.

Click on unblock.bat file > run as administrator to enable the USB drive.

Keep Learning. Keep Rocking :)

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