This problem occurs if the User Account Control (UAC) prevents the activation of processes running in a command prompt non-elevated privileges.
To solve this problem, follow these steps:
- Click Start, Click All programs -> Accessories Click the right click mouse button on the command prompt, then click Run as.
- Click on the following user, select the list administrator username.
- Click OK.
- At the command prompt, type the following command and press ENTER :