The following is a list of programs that can be helpful on Windows for normal maintenance task or making a task easier to accomplish.
Angry IP Scanner – IP scanner. Helpful for finding out which addresses are in use on a network.
WinDirStat – Disk usage statistics tool. Helpful for finding large files and cleaning up.
WiFi Scanner – Wifi Analyzer tool. It is great for figuring out which channel a router is on, channel bandwidths, or signal strength.
EaseUS Partition Master – Makes it easier to shrink a partition when you have unmovable blocks.