Q. Configuration window pop up every time you open office apps.?? A. Do the following. Uninstall previous versions of Office and Office activation assistant.. Paste these commands in run box reg add HKCU\Software\Microsoft\Office\14.0\Excel\Options /v NoReReg /t REG_DWORD /d 1 reg add HKCU\Software\Microsoft\Office\14.0\Word\Options /v NoReReg /t REG_DWORD /d 1 reg add HKCU\Software\Microsoft\Office\14.0\Outlook\Options /v NoReReg /t REG_DWORD /d 1 reg add HKCU\Software\Microsoft\Office\14.0\Powerpoint\Options /v NoReReg /t REG_DWORD /d 1