The features of O&O Defrag v10 version almost same v12 but not supports Windows 7 only.1.Go to here
and enter in your name and email,then click ‘Formular absenden’ icon.
2.You will receive a email with O&O Defreg Professional Edition v10 product key.
3.Download software from
here by select 32 bit or 64 bit version.You will be asking enter in Name,company and license key as launching O&O software,following exactly what the email information provide to you and getting O&O Defrag Professional Edition v10 with free.