One of the most common ways that computers get infected with viruses is through sharing downloaded applications via USB drivers. If a system is configured to automatically run executable files from USB drives, this autorun feature can instantly insert and activate a malicious file on your system. Disabling a USB hub can be accomplished by turning off its corresponding power source through the Device Manager utility and enabling a restriction through Registry Editor. Use caution when making changes to the registry as an error can jeopardize your system’s stability. Instructions
Disable Power through Device Manager
Start the Windows Device Manager utility. Go to “Start”, “Run”, type “devmgmt.msc” and press “Enter”.
Expand the computer name or server name node at the top of the list by clicking the corresponding “+” sign. Scroll down to the “Universal Serial Bus controllers” item and expand it.
Right click on the “USB Root Hub” and choose “Properties” from the drop-down menu options.
Select the “Power Management” tab and uncheck the checkbox that corresponds to the “Allow computer to turn off this device to save power” option. Click “OK” to confirm.
Perform the same step on other USB Root Hubs in the list, if applicable.
Place Restriction through Registration
Launch Registry Editor. Press the “R” keys, type “regedit” and “Ctrl” in the “Run” dialog and press “Enter”.
Expand the hive “HKEY_LOCAL_MACHINE” and these subkeys “SYSTEM”, “CurrentControlSet”, “Services” and click once on the “UsbStor” folder.
Locate the “Start” value in the right pane, right click on it and choose “Modify” from the pop-up menu options.
Enter the number “4” in the “Value data” text field, choose the “Hexadecimal” option button and click “OK”. Close Registry Editor.
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