Installation problems MATLAB R2015a stateflow windows 7

Hello! While installing MATLAB on my PC (windows 7) at 17% I always have the same error.. " The following error was detected while installing stateflow_core_common: C:\Users\Amministratore\Desktop\toolbox\statefeflow\+Stateflow\+STT\+Views\html\reactive\release\reactive\images\sharing_open.png s (The syntax of the file name, of the directory or of the volume is not right) Would you like to retry installing stateflow_core_common? If you press No, the installer will exit without completing the installation. More information can be found at C:\Users\AMMINI~1\AppData\Local\Temp\mathworks_Amministratore.log"

If I press yes, after few seconds the same window appears again... If I press No it exits without completing the installation.

Can someone help me??? Please

Thanks