Topics | How To | Troubleshoot | Related Topics
Cause: An environment variable has an empty value or the user performing the uninstall operation has insufficient rights to some of the folders in the computer.
Solution:
To display and check the current settings of the environment variables; open a command prompt and type set, and press <Enter>.
If an environment variable is not set to a significant value, you must either remove it or ensure that it has a significant value.
You can manage environment variable settings from the Windows Control Panel.