How to block USB Drive in Windows 10

Method 1: Using Group Policy (For Pro or higher versions)

1. Press Win + R, type gpedit.msc, and press Enter.

Navigate to Computer Configuration > Administrative Templates > System > Removable Storage Access.

2. Double-click on All Removable Storage classes: Deny all access.
3. Set it to Enabled, then click Apply and OK.

This will block USB drives from being used.

Method 2: Using Device Manager

1. Right-click on the Start button and select Device Manager.
2. Expand Universal Serial Bus Controllers.
3. Right-click on each USB Root Hub and select Disable device.

This will disable USB devices, but it might also affect other USB peripherals like a keyboard or mouse.

Method 3: Using the Registry Editor

1. Press Win + R, type regedit, and press Enter.
2. Go to:

HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\USBSTOR

3. Double-click on Start, change the value from 3 to 4, and click OK.

This will stop USB flash drives from working.