Windows 8 doesn't recognize any USB ports

Anything I plug in my usb ports isn't detected. All of my USB drivers say this: The software for this device has been blocked from starting because it is known to have problems with Windows. Contact the hardware vendor for a new driver. (Code 48)

Click 'Check for solutions' to send data about this device to Microsoft and to see if there is a solution available.

Checking for solutions does nothing. Any suggestions?

Question Info

Last updated March 24, 2019 Views 10,817 Applies to:


To begin, I had the exact problem as OP. I upgraded my windows 7 to Windows 8 about 2 weeks ago, and suddenly ALL 8 of my USB's did not work.

I had MS Answerdesk perform diagnostics TWICE to try and fix it, the last time they said their level 2 agents had to work on the computer (but never called).

After searching online for the last 2 WEEKS, and finding no definitive answers as to actually fix this problem, CKnospe's option actually worked, but I had to do one thing first: <Removed>

I was going to install and uninstall the program to see if it did anything, since AI Charger didn't show up on the populated programs list.

There were 3 options after I unzipped and loaded setup. Repair, Install and The bottom option was "REMOVE"

I chose remove, as I didn't even know the program was on my computer (didn't show up on the populated programs list) and it forced a restart.

After restart: BOOM, all my USB's are WORKING.

Hope anyone looking for an answer to this tries what I did. I can't express how happy I am with this easy peasy fix. Seriously joygasm here.


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