INTRODUCTION: Base on my experience troubleshooting computers, sometimes the computer system (windows) unable to detect the hardware changes whenever we plug in storage (like thumb drive, memory card, etc). Or after installing all drivers there are still driver missing which listed as 'unknown device' in device manager. So here i would like to share my experience how to solve this problem because there are many reason why your computers get the unknown device problem. IF you have the error and prompt with ' Disk management console view is not up to date' whenever you insert memory card or usb drive you can refer my tutorial here: CONTENT: 1. Unknown device - in device manager Devices that detected as unknown device after installing windows. Unknown device - USB storage and New Hardware Unknown device appear after inserting USB storage such as thumdrive into the USB slot or other computer port. Note: to open device manager click START and on the serach box type DEVMGMT.MSC and press ENTER. In windows 8 right click on lower left corner at the power user start button and select device manager. 1 - UNKNOWN DEVICE - IN DEVICE MANAGER You will see picture like this. NOTE: The solution is step by step process, which is say A didn't work, so move to solution B. If you didn't find unknown device and there's no hardware detected after insert the USB device into the USB slot, click VIEW in device manager and select SHOW HIDDEN DEVICE. 1A: INSTALL AND UNISTALL 1. Irdeto encryption crack. Search results of driver for ACPI HPQ0004. The multeity of PC chassis in the market might create a real confusion for entry-level consumers. Right click on the unknown device. Select uninstall. It will disappear from the list. Right lcik again on any device there and select scan for hardware changes. A new hardware found displayed and select automatically install driver. 1B: IDENTIFYING THE UNKNOWN DEVICE AND GET THE APPROPRIATE DRIVER. To identify what is the unknown device, first we must get the hardware ID. To get the hardware ID you can read my tutorial here: 3. After you get the hardware ID refer to the list below: ACPI HPQ0006 ACPI HPQ0007 HP Quicklaunch Button: Download link - ACPI/HPQ0004 HP Hard Driver Smart Protection Download link - ACPI ENE0100 ENE CIR Reciever (Infrared) Download link - ACPI AWY0001 2&DABA3FF&0 Away Mode Driver Download link - or: ACPI VEN_HPQ&DEV_6001 HP Wireless Button Driver: Download link: If you cannot enable f12 function use this driver: ACPI IFX0102 Ifineon trusted module: USB VID_138A&PID_003D&REV_0104 Validity Fingerprint sensor driver: My hardware ID is not listed here, what to do? -post your hardware ID here and i will recommend the compatible driver for you. Another trick: Google the hardware ID and you will get the information about the device and drivers. USB STORAGE AND NEW HARDWARE. This section will discuss the problem with USB drive such as thumb drive and memory card which detected as unknow device. SECTION 2A: 1. First thing to do is similar with previous post section 1A. Try to plug the USB into other port. If still didn't work try the USB on other computer, if still detected as unknow means there are problem with the hardware. It may refer to faulty hardware. If it work on other computer and not yours, maybe you are missing USB driver/OS patch/upgrade/fix which you can download from your computer manufacture site.
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