Can anyone help me with this??
Try un-installing WDM and re-install selecting default values. Pay attention on password request and review the installation log to verify that there where no problems during the install. If you still have a problem, please provide a little more information like the OS you are installing WDM on, an make sure that all Windows updates are installed before you install WDM.
Here are some helpful links:
I actually got it working by installing the latest patch on the site. Appreciate it!