I had problems to start QTCreator probably because of an bad update. So i decided to uninstall the whole SDK.
The SDK was installed under: ~/Development/SDKs/QtSDK
I stored my Projects at: ~/Development/<my company's name>/ 
And other Project had been stored under: ~/Development/
After the uninstall all files in ~/Development were gone just some softlinks were not deleted...
I executed: SDKMaintenanceTool.app/Contents/MacOS/SDKMaintenanceTool
From: ~/Development/SDKs/QtSDK
I'm able to reproduced the bug...
- relates to
- 
                    QTIFW-177 Qt SDK 5.0 doesn't remove C:\Qt after uninstalling on Windows -         
- Closed
 
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