An extremely simple trick to keep your Mac or PC from unauthorized access

We frequently talk about recent security threats, including the new Trojan horse called “Locky” that encrypts your information forever, making it impossible to read.
Unfortunately, Locky is not the only virus that can cause problems for your operating system. There are many other types of viruses which can silently infiltrate a computer without you even noticing it. One of the most common and easiest ways of accessing your system is through an external flash or a hard drive.

There are a number of software solutions to help prevent such infection, as well as a radical and 100 percent secure hardware method. You can protect your USB ports from an unauthorized access for a short period of time simply by disabling the ports.

If you are using Windows…

All that you need is Notepad and an administrator-level account.

First, create a new document, then copy and paste the following text:

Windows Registry Editor Version 5.00

Save the file in the desired location and name it usboff.reg. Be sure to save it with the .reg extension and not .txt, or this trick will not work.

Now repeat the process, changing only two parts: in the line ”Start”=dword:00000004 change the 4 to a 3 , and then save a new file named usbon.reg.


Now when you want to disable the USB port, simply open the usboff.reg file and confirm the change. This will block any external drive plugged into your PC from working. As you might have guessed, opening and confirming the usbon.reg file will do just the opposite, once again enabling the USB port.
Assuming you are the only one with administrator-level access to the computer in question, no one will be able to change these files except you.

Now for the Mac

This trick is slightly more complicated than on Windows.
OS X 10.11 El Capitan brought with it an additional level of security for your Mac: System Integrity Protection (SIP), which prevents system-related files from modification. Even if you have an administrator-level account, you won’t be able to make changes to these files.

Apple’s new protection policy may have good intentions, but it clearly doesn’t help with our mission to disable USB.

NB! If you are using a USB keyboard or mouse, please don’t attempt this trick! You won’t be able to use these input devices, requiring an alternate method such as Bluetooth.

You can disable SIP by booting into recovery mode. Restart your Mac and hold Command+R as it boots.

From the menu, select Utilities > Terminal. In the Terminal window, type csrutil disable, press Enter, then restart your Mac.

To reenable SIP, launch Terminal while in Recovery mode, but this time type csrutil enable, then press Enter and restart.

But there’s an easier way – download and install the new Paragon Hard Disk Manager for Mac®, which provides, on top of other useful functions, one-click SIP disable feature.

When your SIP is disabled, do the following: open Finder and select Go -> Go to Folder from the menu. Copy and paste the /System/Library/Extensions path into the field and look for two files located there:


Move these files to the Desktop or other location, but be sure to keep them somewhere safe — you’ll need them to enable your USB ports again!

These small tricks can help you protect your information from being stolen or damaged. If you are interested in more advanced and useful features to protect your Mac, try our new Paragon Hard Disk Manager for Mac, a powerful disk management utility for OS X, featuring:

Paragon Hard Disk Manager for Mac

  • System Integrity Protection in OS X 10.11 El Capitan support;
  • Core Storage backup and restore;
  • Snapshot-driven backup;

Learn more about Paragon Hard Disk Manager for Mac

Paragon Hard Disk Manager for Mac

Paragon Camptune X can now add up 2 GBs to your BootCamp partition

The updated version comes with a redesigned user interface, and allows owners of the free edition to also work with Boot Camp.

New and improved features:

  • 2GB can now be reallocated between OS X and Windows absolutely free, particularly convenient for urgent, last-minute changes to available disk space.
  • The new interface design is more intuitive and user-friendly.

Ivan Sidorin, product manager: “We have improved the overall impression of working with the Camptune X application, which has been redesigned to be more convenient from the user’s perspective. We pay close attention to how the user interacts with the software. The new version also improves overall reliability. Finally, we’ve made it more convenient for users of the free edition — for example, if you’re running out of disk space on the Windows partition and urgently need to preserve system updates or other files under 2GB in size. With Paragon Camptune X 10.10, you can now do it in just one click without having to purchase the full version.”

The apps supports OS X 10.6 Snow Leopard to OS X 10.11 El Capitan.

Download yourself and try now!

Get it from CNET!

Special for users of earlier OS X version: Try our full-functional Paragon NTFS for Mac Yosemite Free!

Despite its name, this multilingual product supports all OS X versions up to OS X 10.6 Snow Leopard!

Paragon NTFS for Mac eliminates boundaries between Mac and Windows operating systems, delivering full read and write support for NTFS-formatted drives on OS X. Paragon NTFS for Mac achieves the speed of native drivers and is the industry’s fastest solution for Mac users who want to share data between Mac and Windows systems, so that the user doesn’t even notice on which platform their files are.

Paragon NTFS for Mac 14

Paragon NTFS for Mac Yosemite Free is based on Paragon’s proprietary Universal File System Driver (UFSD) technology. Paragon UFSD provides full access (read/write, format, etc.) to volumes of the most popular file systems under all popular platforms (Mac, Windows, Linux, Android and DOS).

Paragon NTFS for Mac Yosemite Free is available for download absolutely free of charge! For Mac users of El Capitan, the commercial 14th version is available at $19.99.
For other Mac products, please visit Mac ToolBox Portal.

With Camptune X the whole resize operation is literally as easy as moving a slider!

Paragon Camptune X Now Resizes Boot Camp Partitions Even on Fusion Drives or FileVault Encrypted Volumes

A new Paragon Camptune X comes with Core Storage technology support, a new and more intuitive and reliable interface based on Mac OS X elements, and the ability to identify and automatically fix an unsynchronized partition layout or any file system errors.

Camptune X solves the maintenance problem that Mac Boot Camp™ users encounter when they run out of free partition space. With Camptune X, Mac users can redistribute the available space between OS X and Windows partitions rapidly without data loss, quickly and easily adding free gigabytes to partitions used by either operating system.

Learn more about the product.

The new Paragon Mac ToolBox web portal makes it easy to find which of the company’s products can be used to solve particular Mac-related problems. Some of the tools are available free of charge, while all commercial products are available on a time-limited demo basis.