You will need Flash Player at many websites. In fact, there are three Adobe programs that you should have.
Go to
www.adobe.com and, one at a time, install Flash Player, Shockwave Player and Reader. By doing this, you will install the current versions. You can not assume that your new computer has the current versions.
Important Note: When you install these programs, each will ask you if you want to install additional software, such as McAfee Security Scan or something else. Clear the check box if you don't want it. These are legitimate programs, but you probably don't need them.