I need to install OS X 10.7 Lion on my iMac

Question

i need to install a brand new version of OS X 10.7 lion for the new iMac i need a link to the download page becouse i hade a local it repair technician to fix the problem i was having i could not update the OS X Lion software so i call the it technician and he fixed the problem but know my Applications keep on crashing and i Got ibooks that was not i the old Version and i has got Maps so i dont know what the guy has done i asked my cousin who knows a lot about computers he said the technician installed Mavericks and he said you have to tell apple about this to get it fixed so that is why i am writing this anyone who can help please do you support will be very much appreciated

Answer 1

Install or Reinstall Lion/Mountain Lion from Scratch
Be sure you backup your files to an external drive or second internal drive because the following procedure will remove everything from the hard drive.
Boot to the Recovery HD:
Restart the computer and after the chime press and hold down the COMMAND and R keys until the menu screen appears. Alternatively, restart the computer and after the chime press and hold down the OPTION key until the boot manager screen appears. Select the Recovery HD and click on the downward pointing arrow button.
Erase the hard drive:
  1. Select Disk Utility from the main menu and click on the Continue button.
  2. After DU loads select your startup volume (usually Macintosh HD) from the
      left side list. Click on the Erase tab in the DU main window.
  3. Set the format type to Mac OS Extended (Journaled.) Optionally, click on
        the Security button and set the Zero Data option to one-pass. Click on
      the Erase button and wait until the process has completed.
  4. Quit DU and return to the main menu.
Reinstall Lion/Mountain Lion: Select Reinstall Lion/Mountain Lion and click on the Install button.
Note: You will need an active Internet connection. I suggest using Ethernet if possible
            because it is three times faster than wireless.