You may get conflicts between differenet plugins, if these occur just remove plugins (disable) one by one till the issue is resolved then add a new plugin if you still need the feature.
Some tips on installing:
- Install manually not via a auto installer, it is safer, if you use a auto installer, the wpoptimix can help you resolve some security issues.
- Do not use admin as your admin user name
- Do not use wp_ as your database prefix
- Use a secure password
- Check updates daily
With wordpress disable and remove any unrequired plugins and themes
Recommended Wordpress plugins are:
- Wordfence (free or paid) - installed from with wordpress plugins area
- wpOptimix (security , speed and backup plugin -paid) - visit the website for more
- Akismet - protect your blog from comment and trackback spam - installed from with wordpress plugins area
- Wordpress Firewall Blocks suspicious-looking requests to WordPress. | By SEO Egghead, Inc.
There are many other plugins that may do the same or simular or part of these plugins, the choice is yours and the result is yours
This KB article will grow and change over time, please check back regularly.