problem after the installation of drupal-8.3.4

Hi,
after installation of drupal-8.3.4,
when I try to access the menu items of installed drupal-8.3.4 it is showing error404, but the home page is loaded perfectly
I am not able to understand Where the problem is, my guess is due to some permissions.
Plz guide me

ThankU,
Hari49pf.

Drupal version: 


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