When trying to install the latest update I received an error message that an existing file could not be renamed.  I tried uninstalling Skydemon before re-installing but the uninstall also failed.  The system will now not allow me to delete the existing Skydemon directory.  So I'm now stuck without Skydemon on my computer.  If I had the option of placing it in a different file location that might help but it doesn't give that on installation.  How do I sort this out.