Set up second wordpress in root subfolder, Error 404

I’m making an attempt to put in wordpress in a subfolder of an present wordpress set up. I created a the subfolder /wp unziped a recent WordPress obtain inside that listing and added a .htaccess with the next content material:

RewriteEngine On
RewriteBase /wp/
RewriteRule ^index.php$ - [L]
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteRule . /wp/index.php [L]

Nonetheless if I go to mysite.com/wp I get an error 404 not discovered. I already tried the next: Restarting Apache and including the .htaccess content material to the basis .htaccess. But it surely didn’t assist.