.htaccess不在wamp中工作

Below is my .htaccess file which is not working locally(wamp)..

    Options +FollowSymLinks -MultiViews
    RewriteEngine On

    RewriteRule ^[a-zA-Z0-9]{40}$ search.php?hash=$1

    RewriteCond %{THE_REQUEST} ^[A-Z]{3,9}\ /(.*)index($|\ |\?)
    RewriteRule ^ /%1 [R=301,L]

    RewriteCond %{THE_REQUEST} ^[A-Z]{3,}\s([^.]+)\.php [NC]
    RewriteRule ^ %1 [R,L,NC]

    RewriteCond %{REQUEST_FILENAME}.php -f
    RewriteRule ^ %{REQUEST_URI}.php [L]

    ErrorDocument 404 /pivr/error.php

    <Files .htaccess>
    order allow,deny
    deny from all
    </Files> 

Apache Error log says..

[Wed Aug 17 21:00:33.766183 2016] [core:alert] [pid 5780:tid 900] [client      ::1:50180] C:/wamp/www/search/.htaccess: Invalid command 'RewriteEngine',     perhaps misspelled or defined by a module not included in the server configuration

I keep getting 500 internal Server error how to fix it?

Issue fixed by activating rewrite engine in apache module ...