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All my USB ports stopped working

I am not sure if one has anything to do with the other but I was scanning and downloading photos. My computer auto updated KB901190. Shortly after my computer locked up. After working on/off reboot and finally getting back up I cannot get my USB ports to operate. I have disabled and reenabled, I tried updating driver, no avail.

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  • brownlori Jan 19, 2009

    All were working printer is USB, yes checked other USB ports. Have 2 separate cards, front and rear. sys restore unable to restore to previous points.

  • BOZAPE
    BOZAPE May 11, 2010

    The drivers are properly installed?
    Did you try with different devices like use flash, printers, webcam, etc.

    Can you install an USB PCI card port to check it is works.?

    That kb is just a security update but in case try to unistall that kb and check if the usb ports works again.




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  • 52 Answers

Try system restore/if not try bios update..if this fails something wrong with mb

Posted on Jan 19, 2009

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I can't download pictures to my computer error message says cannot detect camera


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I bought the Canon Canoscan N1240u flatbed scanner. I downloaded the drivers and plugged in the cord that came with it but it doesn't do anything.


Just to be sure, did you install the driver in addition to downloading it? Full software or basic driver. The software must be installed before connecting the data cable. What OS are you using? (if you have Vista 64-bit, it is not compatible) If you didn't install the software, uninstall the OS driver and disconnect the data cable before attempting to install the Canon software. Otherwise see the notes for scanning with other software.

First are you trying to use the scanner buttons? These will only work if the full software is installed. For the buttons to work, you have to set up the scanner button destinations in the Canon software first. Also a monitoring program must be running for the button presses to work.

So try scanning from the computer first. If you still get an error, try a new data cable. If you are using a USB hub, try a direct connection. Make sure your USB ports work with a known working device. You can also check if the ports are disabled for security (in the Device Manager for Windows) or power savings (an advanced setting from the Screen Saver).

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I've downloaded the scanner software onto my computer, and I am able to make photo copies, but when I try to scan something the screen on the printer says "preparing," and nothing happens. Additionally,...


For that first go to device manager then uninstall all usb drivers.
Right click on my computer then click on property then hardware ->device manager.
Then you can see all driver list first uninstall all usb drivers 1 by 1.
Then also uninstall scannner driver from there.
Then again reinstall scanner driver.
then restart computer then check.
Make sure usb cable and usb ports works fine.Try usb cable in another ports.
If you havewn't driver disk you can download from below link.
click here
Select your operating system and download driver.
Let me know if you need more assistance.
Thanks.

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Make sure your keyboard and mouse are plugged into the right USB ports on the switch. If you plug the keyboard into the mouse USB port the hotkeys will not work! The USB ports on the KVM switch are labeled under each port, with a mouse and keyboard icon respectively.From the Quick Start Guide/Manual: The Numlock hotkeys are listed as:
[Num Lock]+[-] [1] Switches to output 1
[Num Lock]+[-] [2] Switches to output 2
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Alternatively: Tap [Scroll Lock] twice to automatically switch between ports.
Note: I've never been able to get the Numlock key combinations to work correctly. I always just use double-tap [Scroll Lock] trick to switch.
If you get stuck with your scroll-lock and Alpha lock lights flashing, just hit [Esc] to fix it.
Source: http://www.aten.com/download/download.php#productGuide (Scroll down to "Quick Start Guide" and choose CS62U out of the drop down).

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Error code:201 occurs due to USB conflict or software not running properly....

Solution#1: Take out the scanner from USB port... shut down the computer.... then restart the computer and plugin your USB plug in anyother USB port(not the ealier one).. Then check if that works.

Solution#2: Click on Start > Click on Run > Type Services.msc press ok.... on the services window check for "Still Image Service" right click on it and select properties .. then click on stop then start(if it is already stoped then click on start).... also make sure the Startup Type: Automatic....

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MP800R: Error code:201 - Printer can print but not Scan!


Error code:201 occurs due to USB conflict or software not running properly....

Solution#1: Take out the scanner from USB port... shut down the computer.... then restart the computer and plugin your USB plug in anyother USB port(not the ealier one).. Then check if that works.

Solution#2: Click on Start > Click on Run > Type Services.msc press ok.... on the services window check for "Still Image Service" right click on it and select properties .. then click on stop then start(if it is already stoped then click on start).... also make sure the Startup Type: Automatic....

Please rate!!

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I believe that what you are having a power issue on the USB port. This port is limited to a certain total amount of power and if you are using other devices on the usb ports they each take away from the total amount available for use. The fix for this issue would be for you to buy a Powered USB Hub, as it has a transformer that plugs into the wall and will avoid using any of the computer's usb power to run the scanner.

Good Luck
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You'll want to verify your computer recognizes your usb ports.
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Device manager- right-click My Computer and go to properties, then select the hardware tab.

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