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USB ports stopped working after power outage


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#1 Adanna

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Posted 20 June 2017 - 09:01 AM

Hi all

 

I realised my USB ports are not working after a power outage two days ago.  I've tried to do updates and used DriverEasy to do it however its saying the drivers are updated but yet they still don't work.  Do I now have to get a technician to deal with this?  I'm wondering if the motherboard is affected.

 

Thanks in advance for any suggestions.



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#2 mikey11

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Posted 20 June 2017 - 09:51 AM

what usb devices are not working?

 

try plugging in a usb drive/stick....does the computer see it?



#3 Adanna

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Posted 20 June 2017 - 09:56 AM

what usb devices are not working?

 

try plugging in a usb drive/stick....does the computer see it?

No its not recognising any memory sticks. My keyboard was not working either and I had to get a ps2 keyboard to use instead.



#4 britechguy

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Posted 20 June 2017 - 10:09 AM

Well, I suspect that power outage also involved a power surge.

 

Even if you are on a surge suppressor, if you happen to have a single electronic component on your USB controller that was "hypersensitive" it may have blown.

 

When you look in Control Panel->Device Manager->Universal Serial Bus Controllers is one or more showing up with either the small yellow exclamation point or other warning symbol?

 

Take a look around Device Manager in general to see if any hardware is flagged.


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#5 dc3

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Posted 20 June 2017 - 11:15 AM

Press the Windows key windowskey_zps092d5c75.png and the R key to open the Run box.

 

When the Run box opens type in devmgmt.msc, then click/tap on OK.

 

Click/tap on Action and select Scan for hardware changes.  This will force USB ports to restart if they are turned off.

 

 

To keep the USB ports from shutting down do the following.

 

In the Device Manger double click on the Universal Serial Bus controllers, then double click on the USB Root Hubs one at a time and click/tap on the Power Management tab.

 

In the Power Management remove the check in the box for Allow the computer to turn off this device to save power, then click/tap on OK.

 

Do this with the USB Root Hubs.


Edited by dc3, 20 June 2017 - 11:16 AM.

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