Verify your User Access Control Settings in Windows
Click on the blank Search window and type in Control Panel and hit enter.
Click on System and Security
Under Security and Maintenance, Click on Change User Account Control Settings
Click on Yes if prompted
The slider should be set to the 3rd option from the bottom of the scale.
After selecting that option, click on OK to confirm your choice.
Click on Yes if prompted.
You will need to restart your computer to have the new setting made live.