Two techniques to rule out the camera does not recognize failure

1 Vimicro camera driver version currently on the market popular many, many users install uninstall the driver remains inside of junk files in the system registry, resulting in difficult to install in the back of the driver update process;

2, currently on the market there is a clone operating system, which integrates Vimicro old version with over a WHQL driver, when the users to install the camera to buy a new or updated driver, the camera does not work;

Methods, automatic uninstall method

Step one, click the Start menu, the corresponding drive Uninstall uninstall (possibly Uninstall the function has been damaged, you can uninstall by installing a new drive, the system will first uninstall the old drive out and also to achieve the objective.)

Step two, before installation of the new drive, select the executable file attachments correspond to the following:
FOR_XP_ME_98.EXE used to WindowsXP/ME/98
FOR_Win2K.EXE used for Windows2000
(Note: The tool requires the system default path is C drive to be effective, in WindowsME/98 operating system such as an error dialog box appears, indicating that the system is already clean, the tool does not harm the driver has been installed)

Step three, install the new driver

The second method to manually uninstall method

Step one, in My Computer - Tools - Folder Options - View in hidden files and folders select "select all files and folders, and then to C: Windowsinf folder will be all the OEM files (such as oem0. inf, oem0.pnf; oem1.inf, oem1.pnf ...) cut and transferred to another directory to save or manually delete the oem files of the camera.

Steps to complete the above steps, insert the USB camera, then the computer will find new hardware pop up and install the driver information, select Cancel, then right click on My Computer, select Properties in the pop-up system properties of the interface, enter System Properties - Hardware - Device Manager with an exclamation point PCCAMERA right-click the uninstall;

Step 3, unplug the camera, install a new drive.

For the above second phenomenon

Step one, clone operating system is the camera driver default stored in the C: WindowsDriverCamera301P file folders below, when you click on the new camera driver CD to install, not prompted already exists there is the camera driver and put this driver uninstall, please put this file folder to find and delete;

Step two, first install a new camera driver, plug in the camera to load the hardware installation is complete, restart your computer after normal use;

Step three, do not need to repeat the above two steps, click on the new disc to install the latest drivers, plug in the camera system detects new hardware and automatically complete the hard drive to load;

Step four, into the Device Manager, you can see the image processing equipment has been successfully installed, but when you open the "AMCAP" preview image will not be able to preview, black and white, black phenomenon;

Step five, the right mouse button on the image processing device VimicroUSBPCCamera (ZC0301PL) "Update Driver dialog box appears, select" install from a list or specific location

Step Six Select Next and select "Do not search", enter "install from a floppy disk interface.
Step seven: Click browse, the path to the drive CD-ROM directory, or the latest driver directory below usbvm31b.inf
Step eight: Always click "Next" to complete the driver installation.

 source: http://www.pcpartsltd.com/blog/two-techniques-to-rule-out-the-camera-does-not-recognize-failure/