Useful tools for DNS troubleshooting
USB port blocked
In order to block or unblock the USB port, enter or search for: regedit
in the system menu . In this way, we run the Windows registry. After enabling the registry, we expand the following keys one by one:
HKEY_LOCAL_MACHINE, SYSTEM, CurrentControlSet, Services
find USBSTOR and modify the field: Start
select the hexadecimal option and in the Value data field enter the number 4. Click OK, close the registry and restart the computer.
As you may have noticed, the default value of this field is 3, so what do these numbers mean.
3 – port unlocked
4 – port locked