Frndz me ny yh pochna tha ki hm hard drive me data ko permanently dlete kse kr skty hai...agr aisa koi software hai to kindly share kr dain...or 2nd masla yh hai ki mre c drive 20gb hai or us me 10gb tk data hoga bt woh 5gb free dekha rha hai...agr kse ko pta hai to kindly mjy bta dain thx..Allah hafiz