Displaying Hidden Files when you don't get the option

In run command box type 'Regedit'

go to

HKEY_LOCAL_MACHINE\SOFTWARES\Microsoft\Windows\CurrentVersion\Explorer\Advanced

in Advanced on the wright pannel make a DEWORD Key and named it 'CheckedValue'
and assign it value of 1
now on left side just below the advanced in Folder expand it
find Hidden in hidden Showall similarly on the wright pannel in CheckedValue assign the value to 1
now again on left pannel find superhidden on wright pannel in CheckedValue assign the value to 1
then RESTART the system and unhide ur files it will be done.........