Failed to create video preview check device connection

Does not eject: "Failed to create video preview, check device connection, make sure no other applications or processes are using the device"?

Yes, take a look at the following methods! I've been like this before, but it's done now!

I did not fix the following method, then summed up how to fix it. Most of the following is copied online, the last point is to make their own, if you have seen these online, I suggest you see the end directly.

Please read, because some of the following is copied, but finally there is finished summed up!

1, the System XP, the camera driver installation is normal, but the device can not use (QQ and other video software can not use the video function).

2. When you double-click the camera in Explorer or My computer, jump out of the warning window: "Video preview failed: Failed to create a video preview, check the device connection, and make sure no other application or room is using the device";

3, check the "Device Manager" "Image processing equipment" under the camera items, display equipment normal operation without conflict.

4, check the system process items, no QQ, etc. are using the camera program.

5, check system services, "Windows Image Acquisition (WIA)" Service has been started (automatic).

6, the recent system is nothing but normal operation.

7, antivirus software Jinshan Poison PA 2007 Set the "Prohibit U disk and hard drive automatic operation" function. (This item is now identified and has nothing to do with this issue)

8, the operation of the Msconfig in the start-up vm_sit if any, take off the front hook number, and then restart.

This is a copy of the family!!

But I can't even use it! And then listen to people say that the player and the camera driver is not compatible with the cause of this,

Then I uninstall all the players, reboot after the camera on it! Then reload the player, restart, the results are no problem!