Backup Project und Run Configuration Server Settings in Netbeans
[25.11.2015]
Copy this into your new netbeans installation:
Whole directory: .AppData\Roaming\NetBeans\8.0.2\config\Preferences\org\netbeans\modules\php\project
File: C:\Users\USERNAME\AppData\Roaming\NetBeans\8.1\config\Preferences\org\netbeans\modules\projectui.properties