Let me take a moment to thank you for posting on the HP Support Forums.I understand that you have an HP Pavilion Notebook - 15-ab254sa. I read that you would like to disable the USB 3.0 ports and make it work like USB 2.0. I'll certainly do my bes to help you.To provide an accurate resolution, I need a few more details:. Are USB 2.0 devices not working on the USB 3.0 ports of your laptop?. Are the USB 2.0 ports working on the one USB 2.0 port? This laptop has one USB 2.0 port as per the.Meanwhile, I did some research and would like to inform you that there is no option to convert the USB 3.0 ports to USB 2.0. However, to make USB 2.0 devices work on USB 3.0 ports, I have a workaround for you:.
Some USB 2.0 devices will not work when connected to a USB 3.0 port. To fix this, disable the xHCI controller (the Intel USB 3.0 controller) and uninstall the USB 3.0 driver in Device Manager using the following steps.Start or restart the computer.Press F10 to enter Setup.Click Advanced, and then click Device Options.Enable USB EHCI debug to disable the xHCI controller.Save the changes and exit from Setup.In Windows, search for and open Device Manager.Locate the USB 3.0 Root Hubs under Universal Serial Bus Controllers.Figure: Locating the USB Root Hub. Right-click the USB 3.0 Root Hub, and click Uninstall.I sincerely hope this fixes the issue.
Please keep me posted on the results. The problem is: I am the musician and I using a MPC Renaissance controler which have problem to work with 3.0 ports.And yes, that laptop have one 2.0 port but it's on the same line as another 3.0, so propably it using same USB bus as that 3.0 port. Anyway my controler won't work with that port too.I tried disable the xHCI controler but my bios doesn't have that option, or any advanced options, look:I thought about bios upgrade but don't know which version choose.Thanks for your help anyway, Regards. Thank you for your reply.If other USB 2.0 and USB 3.0 devices work fine then it should not be a problem with your laptop.
There should be some compatibility issues between MPC Renaissance device and the USB ports. I check the specifications of the MPC Renaissance and found that it is compatible with USB 2.0.However, if you would like to update the BIOS then you may download and install it from this.NOTE: Please have the ac adapter connected during the BIOS update.I wish you all the best. Keep me posted.
'To use pins RC4 and RC5 as digital inputs, the USB module must be disabled (UCON = 0) and the on-chip USB transceiver must be disabled (UCFG = 1).' How do I turn off these functions using the C compiler? Register, so it's already disabled and you don't have to do anything. IOS 11.4.1 for the iPhone, iPad, and iPod touch includes a new security feature called USB Restricted Mode. It’s designed to keep hackers out of your iOS device and it’s enabled by default.
You have to do this steps as bellow:. Go to the client machine and. go to start button and type in to search box gpedit.msc. then your group policy window will open.
![How To Disable Usb Pic18f4550 How To Disable Usb Pic18f4550](http://1.bp.blogspot.com/-e6u4xDF9riY/WcabIgIWgrI/AAAAAAAACtU/FRxBbVBrFfAgtnTMiZoJXUlq2hi_fKAsgCK4BGAYYCw/s1600/pic18f4550%2Busb%2Bmouse%2Bir%2Bremote%2Bcontrol.png)
left side of window - search Administrative Templates and double click on it. then click on System. next you will see Removable Storage Access just click on it.
then you will see lots of group policy name. see the All Removable Storage Access: Deny All Access.
double click on it and select the option Enable and click on OK button. you will success to block USB of client.