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HI I try to block usb mass storage in mac 10.11, and I following follow instruction however when I try to delete the files I got Operation not permitted error. I try to use administor and root, but both had same error? ' Removing USB Support Software Use the following instructions to remove USB mass storage device input/output support such as USB Flash drives and external USB hard drives. The removal of this kernel extension only affects USB mass storage devices. It does not affect other USB devices such as a USB printer, mouse, or keyboard. This task requires you to have administrator privileges. Important: Repeat these instructions every time a system update is installed.

• Win98 Usb Driver Download

Win98 Usb Driver Download

To remove kernel extensions for specific hardware: 1 Open the /System/Library/Extensions folder. 2 To remove support for USB mass storage devices, drag the following file to the Trash: IOUSBMassStorageClass.kext 3 Open Terminal and enter the following command: $ sudo touch /System/Library/Extensions The touch command changes the modified date of the /System/Library/Extensions folder. When the folder has a new modified date, the Extension cache files (located in /System/Library/) are deleted and rebuilt by Mac OS X.

4 Choose Finder Secure Empty Trash to delete the file. 5 Restart the system. The steps you are following date back to OS X Snow Leopard, and reportedly aren't effective on recent releases.

(See,.) As for your question, you will need to shut off SIP — SIP is designed to block what you are doing — and then follow the steps you were trying to follow earlier. Whether that works? Unless it's hidden in or in another MDM , I'm not aware of a supported way to lock out USB devices. Used to be that you could block USB device access with MCX, but MCX has been deprecated for a while, and Apple hasn't published the deletion sequence from Leopard for more recent releases.

Which is why I suggested physical port locks. Profile Manager and OS X Server and managing this and other Mac or iOS devices may be just what you need, or massive overkill. Reinstall or restore the software, and re-enable SIP, as a starting point. Get back to a working configuration. What are your more general application or requirements? I understand that you want to block the ports on your Mac. But is this a school or business or other environment were a server would be expected and useful, or where a server or MDM would be useful for Mac or iOS or other clients?

Or is this a few home Mac systems, where something like Parental Controls might be useful? Or are physical port locks an option? Apple Footer. This site contains user submitted content, comments and opinions and is for informational purposes only.

Apple may provide or recommend responses as a possible solution based on the information provided; every potential issue may involve several factors not detailed in the conversations captured in an electronic forum and Apple can therefore provide no guarantee as to the efficacy of any proposed solutions on the community forums. Apple disclaims any and all liability for the acts, omissions and conduct of any third parties in connection with or related to your use of the site. All postings and use of the content on this site are subject to the.