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Unknown device message on control screen - HP Photosmart C7250 All-In-One Thermal Printer

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When trying to open WaveLab 6 using Windows 7 I get an Unknown TException error message.


""When trying to open WaveLab 6 using Windows 7 I get an Unknown TException error message."Don't know if this helps. I'm using Win 10 with Presonus Firestudio as my audio interface. I kept getting the unknown TException when I tried to open Wavelab 6. Solved it by going to device manager and disabling the internal AMD sound card and two "High Definition Audio devices" with mfg shown as Microsoft. Must have been hardware conflict between Presonus and internal sound card.

Dec 15, 2010 | Computers & Internet

1 Answer

Running windows XP home edition get message USB


Try reinstalling the motherboard drivers, maybe something is wrong with the USB controller.

Jun 07, 2009 | Computers & Internet

2 Answers

My phone is sending an unknown message to another phones.how can i stop this ?my phones bluetooth is in off possition i have nokia 6600 my phone sending unknown files to other devices if my bluetooth in...


sir you have to go the settings>conectivity>bluetooth>visiblity turn off your visiblity if want to transfer file then you can on your visiblity

Jun 01, 2009 | Nokia 6600

1 Answer

I have an Averatec model#3150p pc notebook.It has a 3 port usb hub but only 1 port works. i.e.:When I plug a device into the 2nd or 3rd port I get error message saying the device has a problem.(unknown...


Dear Friend..

Go to Control Panel=>System => Harware=> Device Manager. Under the "Universal Serial Bus Controllers" delete all USB root hubs & controllers/ ports & then Action=> San for hardware changes That shall freshly install the USB ports on your system & shall work.

Best of Luck..

Jul 10, 2008 | Computers & Internet

6 Answers

Hp laserjet 1020 ( usb device not recognized )!?


I wish that there was a simple, single answer for this. There's only one thing more distressing - no device recognition at all. Here are the most likely culprits:

* The USB device or the USB adapter requires it's own power source. If your USB device or adapter came with an AC power "brick", try connecting it.
* Here's a likely one - the front USB ports on your PC case may be misconnected. I've seen them that way from the factory. It's a good idea to check the connections against specifications. The standard order of connection is Red, White, Green, Black. No more than 4 wires per USB bank are needed.
* Defective device. Do not assume that all PC components work correctly out of the box. I've seen many new USB devices that do not work. If you can, try the device on another PC.
* All drivers are not installed. Some devices will require installing the driver package before plugging in the device. Some devices will also require basic USB files from the Windows CD before the unit will function. The general rule is to always follow installation directions precisely and to have the Windows CD ready.

I will now discuss how to address an unknown device problem which is caused by a driver deficiency.

1. Try to update the unknown device driver from within Device Manager. First try letting Windows search for one. If that fails, go back and choose "Select from a list" and then "Have disk". Browse to the device CD and look for the appropriate Windows folder there. Try browsing to the Windows CD (Win9x folder or i386 folder). Lastly, try updated drivers from the manufacturer's web site.
2. Try uninstalling the unknown device, unplugging the device and rebooting. Replug when back in Windows.
3. Be certain that you have the correct drivers! You may have gotten the wrong CD or a CD with drivers for more than one device on it.
4. Cleaning up in Safe Mode may be necessary. Unplug all USB devices. Reboot the PC. To enter Safe Mode, press the F8 key repeatedly while restarting the PC. Timing is important. Try to press quickly before the Windows logo screen appears. Pressing and holding the CTRL key may work too. Choose Safe Mode and open Device Manager. In Windows 2000 and XP, click View > Show hidden devices. Now locate all USB devices, HID (Human Interface Devices), USB drives and controllers/hubs. Remove all and save the USB Host Controllers for last. When done, restart and replug USB devices one at a time.

Just remember that you are entitled to support from the device maker. If you can't get help, do not hesitate to return the device. Some manufacturers only seem to respond to lost business. It's a shame, but it's true. Send them a message - that you won't accept shoddy goods or lackluster support.

Mar 26, 2008 | HP Photosmart 3210 Printer

2 Answers

Unknown Device


have you tried to plug it into another usb por to see if you get the same result, the original port might be in a locked state and may have had problems releasing the usb key.

Did you try reboot your PC?

x-b-m

Mar 07, 2008 | Computers & Internet

1 Answer

Black screen


To view the pictures on the computer, remove the card from the battery compartment and put it in a card reader connected to your computer.

Jan 17, 2008 | Canon PowerShot A540 Digital Camera

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