Where do I get free software download?

You should contact Toshiba's customer service, or go to their web site and take a look at the support and download sections.

If it's about drivers, those are always free. Those specific to your computer are available from the Toshiba's site.

Another thing that you can do, is to look for alternatives for the lost softwares.
Here are some places that you can look for:

ninite.com/
This one offers smart downloaders and installers that are set to always say NO! to all side installs, home page and search engine change,...

downloads.zdnet.com/
Maybe the largest download site you can find, and one of the oldest.

www.filehippo.com/
A major download site. The proposed downloads have been filtered to remove rogues applications and other unsavory stuff.

alternativeto.net/
A neat repository of many alternatives to beter known applications.

www.lacuna.us/links/freeware.php
Hand made compilation of nice free applications.

www.fosshub.com/
A recent discovery. Looks good.

Electro
August 2014