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This issue can be caused in Windows 8.1 by using a 3rd party Windows 8 theme or if the update KB3072318 is installed. If you use no old theme, remove the update.
Thanks! It's correct now, after uninstalling this update. – Maurício Fonseca – 2016-02-26T23:58:01.833
Do you have any idea when this started appearing? Do you have a restore point you can revert to to when it was working? – Terry – 2016-02-25T13:19:16.763