Drivers/Hardware :: How To Change Registry Keys To Increase USB Power To 500mA
Aug 7, 2015
I ran into this problem while on Win7 & found a fix (YouTube - Apple Keyboard Hack - Fully-powered USB ports on a PC!) . Unfortunately, the YouTube video has been removed. I use an Apple keyboard that has 2-USB ports, one on each side of the keyboard. The power limits for these USBs was 100mA on Win7 so using a mouse is OK. But, if I plug in a USB drive or better yet my Wacom Tablet I get an error stating the power is too low to support. I believe the ports need to be 500mA.
I don't recall exactly how the YouTube author changed the registry key value but he did & I used these 2 USBs without problems for 4 years. I'm having trouble finding the USB location using run / regedit. Below are two screen grabs I used in my post 4 years ago. Windows 10 looks a lot different. Anyway, the USB I need is port 3 hub 7. How to navigate the registry key to that location & edit from 100mA to 500mA.
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I detest them. And on this particular cheapo keyboard, they're in a *particularly* annoying location for me. So what I want to do is to turn them OFF! Preferably permanently, altho in Win 10...this might be impossible. (A hint in DosBox suggested deleting certain junk keyboard devices...but Windows 10 put them back in when I rebooted. NO!! But Windows is the god of the computer, so YES.) Still, as long as I have SOME method to turn these buttons off, that would be a huge improvement.
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