This is an app that’s useful for people with a LOT of information on their system, or if you need to work on someone else’s computer and they had no idea where they were saving everything. (Or maybe they don’t want you to know *wink wink*)
WinDirStat is a disk usage stats viewer and cleanup tool [...]

Hard Drive Usage Statistics
Process Monitor v2.8
In case you’re new to filemon and regmon, what this app can do for you is watch what a program does on your computer. You start Process Monitor first, (No installation needed) and then proceed to set up filters. The easiest way to get started is to drag the sniper scope icon to any other programs window. Clear the current view by pressing Ctrl-X. Then Process Monitor will show you every file that your application that you have filtered, reads/writes/creates/deletes, as well as every touch it makes to the registry. You can see this would be very helpful if saw, you wanted to know exactly what your application was doing at any given time.
Notepad++
Ok If you haven’t heard, Notepad++ is basically the end-all editor for writing code, FAST. While it’s not a true IDE for writing full scale applications like Java’s NETBeans, Visual Studio, Dreamweaver, etc., it’s makes life so much easier for those of us who only need to do editing, quick code-revision, editing, and even as just a syntax highlighter. You can get it here….
AnvirTASK Free Portable Edition
Anvir Task Manager Free
Security analysis of processes, startup programs and Windows services basic
Startup monitor: alerts on new startups, block undesired startup programs
Check files on VirusTotal.com with 30+ antivirus engines
Startup manager: manage all programs running on startup including services and Internet Explorer toolbars
Save HijackThis log with additional info
Increase PC performance



