Hello
This happens sometimes. This is the workflow I use to resolve the issue
Please just use C:\ drive to create the config store and directories for now. You can move them to a different location later.
1.Remove any config store and directories that are left from previous installs. You can accomplish this by renaming them or deleting them.
2. Start the site creation, when you get the error, leave site creation running.
3. Navigate to the place of the config store and delete it
4. Resume the site creation, this should allow you to continue the installation.
Please let me know if this helped. Thanks-