wp-admin gives me a 404 error

One of my wordpress installs gives me a 404 error when I try to login via wp-admin. If I use wp-login.php it shows up but once I type in my login information and it redirects to wp-admin I still get the 404 error. If I delete my .htaccess file it works fine but as soon as I login and turn on permalinks and log out and try to login again it gives me a 404 error.

Here is what my .htaccess file looks like. Does anyone know how I can fix this. I have looked all over and haven’t been able to find a way to resolve the issue.

# BEGIN WordPress
<IfModule mod_rewrite.c>
RewriteEngine On
RewriteBase /
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteRule . /index.php [L]
</IfModule>

# END WordPress