The LibFredo6_all_defaults.dat can have incorrect permissions if SketchUp was installed incorrectly [i.e. not using 'Run as administrator'] Although running it again 'as administrator' and choosing 'Repair' should fix most permission issues, some remain - especially with extensions saved files/folders. Deleting the the LibFredo6_all_defaults.dat while SketchUp is closed should work as SketchUp will recreate it with the correct permissions when it next runs.