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Windows 7: Suddenly all USB ports stopped working on win 7

29 Sep 2011   #1

Windows 7 Ultimate x86
 
 
Suddenly all USB ports stopped working on win 7

That day suddenly my PC's USB ports stopped working. I tried all USB ports with deferent kinds of drives(pendirve, mobile, modem) but computer is not responding. I tried reinstalling my windows 7 but remains same. I also tried Ubuntu, Mint, Hirens Boot CD etc but no OS finds my any kind of USB disc. On windows 7 I tried uninstalling and installing USB drives manually but don't work. In the mean time today at dawn one of my USB modem started working(on Windows 7) but after some seconds it became like before.

Can anyone figure out which problem I'm facing? Is it related to my hardware?


My System SpecsSystem Spec
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30 Sep 2011   #2

Windows 7 Ultimate 64 bit
 
 

First place I would start would be update all primary drivers for your PC, what ever flavor you have, desktop/laptop. Go to that vendors website and download and install all the latest drivers. If you have add on specific hardware go to that vendors site for drivers.

The next thing I would do is to rule out any Virus's, malware, spyware and adware that my be lurking about your system. It's known that some of these nasties can and do corrupt system software and hardware.
My System SpecsSystem Spec
30 Sep 2011   #3

Microsoft Community Contributor Award Recipient

Windows 7 Ultimate 64
 
 

Boot into safe mode with networking and then update anti-virus and malware, run a complete anti-virus and malware sweep, see what comes up and report back.
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02 Oct 2011   #4

Microsoft Community Contributor Award Recipient

Windows 7 Home Premium x64 SP1
 
 

Unplug the PC from the power cord. After it is unplugged, hold in the power button for 30 seconds or so. Leave it unplugged for approx. 1/2 an hour. Try it again. May not be the fix, but it easy to try and it can work when it is not hardware related. A Guy
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10 Oct 2012   #5

Windows 7 Professional 64 bit
 
 

I had the same problem (all of a sudden).

I expanded "Universal Serial Bus Controllers" branch in the device manager. My USB Root Hubs were showing warning symbol.

I just right clicked each of them, chose "Update Driver Software" and in the popup, chose "Search automatically for updated driver software".

Now the warning symbol in my USB Root Hubs disappeared and devices work without any issue.
My System SpecsSystem Spec
14 Nov 2013   #6

Windows 7 Home Premium 64 Bit (6.1, Build 7601)
 
 

I am currently having this exact problem, except there is one USB port still working (which I am constantly having to alternate between my keyboard and mouse). I have two forward USB Ports which still deliver power as my keyboard numlock indicator lights up, but it doesn't receive any data signal.

Device Manager shows an "Unknown Device" in the USB Controllers group, with a yellow triangle around an exclamation point. Somehow, despite that windows doesn't know what it is, it is able to tell me all drivers are up to date for this device.

The problem started just a few minutes ago when I booted my computer, it had been shut down normally about two hours prior. Upon logging into Windows the gadget in the corner of my screen showed an unusual spike in processor usage going up to 45-55% when it's normally around 10% or less at that point in the start up. I was also alerted that new drivers were unable to be installed.

I rebooted and that same scenario played out with no change in the circumstances. I am currently running Ad Aware and Malware Bytes to see if there's a problem there.
My System SpecsSystem Spec
14 Nov 2013   #7

Microsoft Community Contributor Award Recipient

Windows 7 Home Premium x64 SP1
 
 

Assuming you have tried all of the above (the unlug one will surprise you, it can work )

You say, "I was also alerted that new drivers were unable to be installed." Is this when trying to update them yourself, or that was a popup message unrelated to you trying to update?

1st thing is easiest. Pick a restore point from before this began, and see if that corrects the issue

System Restore

If no help, you can try uninstalling the drivers and reboot and windows will find them for you.

Open Device Manager> Right click the USB controller and choose Uninstall> Agree when it asks you if you want to proceed> Repeat for all USB controllers> Reboot, Windows should find and install drivers from the Driver Store

See if that works.

A Guy
My System SpecsSystem Spec
14 Nov 2013   #8

Windows 7 Home Premium 64 Bit (6.1, Build 7601)
 
 

Actually, I didn't try any of that. Whenever I find a problem that I don't think I can solve, I do not even bother trying to work it out or find a solution. I immediately ask someone, or a group, that has demonstrated knowledge of whatever the issue involves and the problem fixes itself before they can open their mouths. This method has worked yet again.

I have no idea what the problem was, it was a pain in the butt to log in here and type and post while having to switch the keyboard and mouse out, but when I was done with that I rebooted again (which didn't solve the problem the first time) and it works now.
My System SpecsSystem Spec
14 Nov 2013   #9

Microsoft Community Contributor Award Recipient

Windows 7 Home Premium x64 SP1
 
 

Well, glad I could waste my time for you...

A Guy
My System SpecsSystem Spec
15 Nov 2013   #10

Windows 7 Pro-x64
 
 

I found out recently (Monday) that loading Topo and Street Maps from DeLorme hosed my USB Ports and disabled my Veris IR panel (USB driven). Seems the software grabs all the ports looking for a GPS when I selected Sync. It wouldn't talk to my older Earthmate PN-20 GPS. That crap got removed in a hurry and after a reboot, everything was fine. Oh yeah, one other thing the software did was to hook my video driver. When I closed the Maps, I saw my video options panel disappear right behind it. Creepy software for sure.

Just saying; Have you installed any type of USB polling software lately?
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 Suddenly all USB ports stopped working on win 7




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