Below are Free programs that I recommend to Install.

Avast This is a Great Anti-Virus program. There is a paid upgrade but recommend the free version.

Download: Fast, Fun, Awesome This is the best, fastest and most secure Web Browser in my opinion.

Thunderbird This is a email client similar to Microsoft Office.

Libre Office This is very similar to Microsoft Office.

This one is for Windows only.Ccleaner Keeping your computer clean and in order is always a good idea. This is a powerful program. If you use this please make sure you know what your doing. If you are a Linux user then I recommend BleachBit