how to format dell inspiron n5030

[JJ 3000]

i tried the way mike said but
  i did get a screen shot telling all these

choose the recovery tool]
startup repair
system restore
system image recovery
windows memory diagonostic
command prompt,

Choose system image recovery.

[siby_1]

i called in dell, they said as i did an installation which is dead installation and its the reason y the restore factory settings is not available on the lap and they will send me an email with set of instructions to follow to have  a complete self installation, on monday