I haven't connected my new Inspiron 2020 (Windows 7) to the Internet yet.  I bought it about ten days ago.   The security vulnerability affects versions 6 through 11.  Which version of Internet Explorer is already on my new computer?

Should I wait for the Internet Explorer vulnerability to be fixed before I attempt an Internet connection?  Or is it safe for me to proceed with connecting to the Internet with IE and switch to Firefox as soon as possible?

http://blogs.technet.com/b/msrc/archive/2014/04/26/microsoft-releases-security-advisory.aspx

http://www.reuters.com/article/2014/04/28/us-cybersecurity-microsoft-browser-idUSBREA3Q0PB20140428

I assume that IE is the only browser that is already loaded onto the computer, am I right?  And I assume one of the first steps will be downloading all the Windows updates that have been issued since the system was installed.

I have been using Firefox on my older existing computer and it is my preferred browser.

I doubt that Firefox is loaded onto my new computer.

I know to use Limited User Accounts whenever possible and to not click on links in emails, etc.  I have 12 years experience using my home computer and have learned about viruses the hard way!  I would just like to be safe rather than sorry.

Thank you for your help!