Here is a list of software I use and recommend. Best of all, they are all free!
CCleaner from Piraform. - Great for removing left over installation files, temp directory and general crap.
HTLMy. An open source Databaseless Blogging Platform or Flat-File Blog prioritizes simplicity and speed written in PHP. HTMLy can be referred to as Flat-File CMS either since it will also manage your content. What I use on this Blog!
NGINX Open-source, high-performance HTTP server and reverse proxy, as well as an IMAP/POP3 proxy server. NGINX is known for its high performance, stability, rich feature set, simple configuration, and low resource consumption.
Notepad++ The basic notepad that comes with Windows doesnt cut it when you start to edit configs and code. Notepad++ is an excellent tool and highly recommend it.
Sophos UTM Home Free Home Use Firewall is a fully equipped software version of the Sophos UTM firewall, available at no cost for home users – no strings attached. It features full Network, Web, Mail and Web Application Security with VPN functionality and protects up to 50 IP addresses.