USB connection problem

Hewlett-packard / Ew055aa-b1u
December 30, 2010 at 07:24:24
Specs: Windows Vista, 2 GHz / 1533 MB
The usb-ports only work with a couple devices.

I installed the drivers for a samsung digital camera on my conputer and suddenly the usb-ports started to behave in a very wierd way.

I can plug in normal thumb-sticks that run on low power but my kingston 16GB stick stops working after a couple of seconds. I then tried with my olympus camera and that starts up and connects to the computer but when i enter the folder with pictures the camera starts "thinking" and is disconnected from the computer. The "removable disk (L:)" is still there but its empty.

This goes for all the usb ports. I have a usb-mouse and a usb-keyboard that work perfectly. My canon printer also works fine with the usb port.

The problem is that most of the mass storage devices that i have tried do not work except my old dell 256mb stick and my kingston 2GB stick.

I tried to restore the system to an earlier system point but there was no difference. I have tried to uninstall the root hubs and windows restack them after restart but it changes nothing. It feels like it is a power problem as i implied earlier- It seems the ports can't handle higher power outputs. I am thinking about buying a powered usb hub and test the ports that way?

I am running Vista now and thinking about uppgrading to windows 7 but it feels like a waste unless i can fix this.

I dont know if this is a hardware problem or a softwareproblem but since it stopped working while installing drivers i think it is a softwareproblem?

I have reset bios.

Is there any answers to this wierd problem?

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December 30, 2010 at 12:30:00
What drivers did you install for your digital camera? You should have needed any drivers.

Is there a listing in program files for the camera? If you used a disk from the camera it was to be used on Win98SE and possibly Linux. WinXP, Vista & Windows 7 don't require any additional USB drivers for mass storage devices.

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