How to find serial USB port assignments programmatically?

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  Hello

  Thanks to community Microsoft can help you with your concern for Windows!

  You are facing problems with the USB ports on the computer.

  Method 1:

  Run the troubleshooter of material and check what is happening.

  http://Windows.Microsoft.com/en-us/Windows7/open-the-hardware-and-devices-Troubleshooter

  Method 2:

  As all devices have same also have USB device associated drivers. Appropriate sometimes drivers not detected after initial installation so reinstalling the drivers can fix the problems.

  You can check after uninstalling and reinstalling USB drivers if you are able to connect. You can disconnect all USB devices and then perform the following steps:

  1. click on start and then click Control Panel.

  2. click on system and Maintenance, click System, and then click Device Manager.

  Note: If Control Panel is in Classic view, double-click System and then click on Device Manager.

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  3. in Device Manager, double-click to expand the "USB Bus controllers", right click on the controller host, click "Uninstall" and click "OK".

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  Then, restart your computer and Windows 7 will automatically reinstall all USB controllers.

  Method 3:

  You can update the driver from chipset from the web site of the manufacturer and then uninstall and reinstall the device driver updated from the web site of the manufacturer.

  Updated a hardware driver that is not working properly

  http://Windows.Microsoft.com/en-us/Windows7/update-a-driver-for-hardware-that-isn ' t-work correctly

  If the problem persists, or you need help on Windows please keep us informed.

  We will be happy to help you!

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