Disable the use of MSDos

go to run and type regedit then go to the key:


User Key: "HKEY_CURRENT_USER\Software\Microsoft\Windows\ Curr entVersion\Policies\WinOldApp"
and
System Key: "HKEY_LOCAL_MACHINE\Software\Microsoft\Windows \Cur rentVersion\Policies\WinOldApp"
Create a new DWORD "Disabled" and set its value to "1". Change it to "0" for enabling.