Useful software

HDD Guardian: https://hddguardian.codeplex.com/

HDD Guardian is a piece of software that provides a Windows front-end for smartctl, a utility which monitors your hard drive(s) and SSD(s) for health status, taking advantage of S.M.AR.T. as well as allowing for running self-tests on the drives.

Speedfan: http://www.almico.com/speedfan.php

Speedfan monitors the voltage and RPM of fans connected to the computer and allows the adjustment the speed of PWM fans that are connected.

Teamviewer 10: https://www.teamviewer.com/

Out of all the remote desktop software I have used, only teamviewer really has been consistent in always achieving a stable connection and comes with a variety of handy features if you happen to need to assist someone rather than just managing computers remotely plus it comes with two factor authentication to boot. Free for personal use, any commercial use requires a licence.

EMET: https://www.microsoft.com/en-us/download/details.aspx?id=46366

An extremely useful tool kit that allows you to enforce Microsoft security techniques on applications that have not been complied to take advantage of them and block/prevent some exploits that exist in a number of applications like Java and Adobe Air.

XAMPP: https://www.apachefriends.org/

A great WAMP package to a get a development web server up and running on your desktop for testing site changes and just general learning of how a web server works.

SUMo: http://www.kcsoftwares.com/?sumo

A software update checker, it is peer-based in that if one user updates to the latest version, it informs all users using the application.

Pushbullet: https://www.pushbullet.com/

Allows you to push and receive notifications, files, text etc. from any device I.E. get an SMS on an android device and receive it as a notification toast on a Windows PC.

Will be adding more at some point but just an initial list to use for finding great software and a reminder to me to make sure I have everything set-up if I happen to reinstall Windows.

Pandoc: http://pandoc.org/

Convert any document from one markup to another via any format you can think of including the most obsurue and not widely known markups. Has a large amount of documentation and useful extras for various purposes.