Written by Eric Wyatt (last updated June 10, 2019)
Since its introduction, USB has provided an amazing advancement in what we can do with our computers. It allows us to connect devices as varied as keyboards, mice, printers, external storage, and more. Unfortunately, it also provides a way for someone to quickly copy data off your computer. You may find it helpful at times to restrict the ability of USB storage devices from being used with your computer. By editing the Registry Editor, you can turn this functionality on or off as you need it, while still allowing use of your USB keyboard, mouse, and USB printers.
To disable USB storage devices, follow these simple steps:
Figure 1. Edit DWORD (32-bit) Value dialog box.
To re-enable the USB ports, repeat the steps above, and at step 5 change the "4" back to a "3" and restart your computer.
By disabling USB storage devices access to your computer, you can help ensure that your information is safer on your computer, and not on your friend's USB device.
This tip (13641) applies to Windows 10.
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