It is not true that today's Dell computers come with much bloatware. That refers to earlier systems before computers were setup using an image file. Just use and learn about your new computer and Windows 7 and don't delete any programs until you are familiar with everything. Windows Help is a good tool. Look up anything there.

It's hard to say what you can delete - each system might be a little different than the next.  And what some call bloatware, others call essential.  For instance, some computers come with McAffee antivirus.   Some people dislike this version of antivirus for whatever reason and will call it bloatware.  Others will love it.

Usually Bing is preinstalled, McAfee, Dell Stage Roxio Creator starter. I got rid of all of these but ended up performing a clean install as was very disappointed with my factory settings performance