WinDirStat https://windirstat.info/ Will give you a graphic look at what is stored on your hard drive and why you are out of space.
ISO Recorder http://isorecorder.alexfeinman.com/Vista.htm by Alex Feinman. A quick download and works better than Nero or Windows.
What? You want to reload Office from you old computer to your new computer but have no idea what the registery key (serial number) is? There is a tool for that. Each of these works fine. Just download to your desktop and run.
CDKeyReader http://www.skaro.net/cd-keyreader/
NirSoft CD Key Reader http://www.nirsoft.net/utils/product_cd_key_viewer.html
also from NirSoft - to read wireless passwords.
http://www.nirsoft.net/utils/wireless_key.html Yo, this will display wireless codes already on your computer. Not your neighbor's wireless codes.