The Boot Configuration Data Store Could Not Be Opened. Access Denied – Windows 8 Posted on by Webmaster IT Support Forum › Forums › Windows › Windows 8 › Troubleshooting › The Boot Configuration Data Store Could Not Be Opened. Access Denied – Windows 8 Tagged: Access Is Denied, BCDEdit This topic contains 0 replies, has 1 voice, and was last updated by Webmaster 4 years, 6 months ago. Author Posts October 4, 2014 at 1:36 pm #890 WebmasterKeymaster When using the BCDEdit command in Windows 8.1, you get this error: The boot configuration data store could not be opened. Access is denied. To fix the Boot configuration data store error, run the command prompt in elevated mode (right click the command prompt icon and click Run as administrator, then run the BCDEdit command again. Author Posts You must be logged in to reply to this topic.