Windows command line is always my favorite tool. It is one of the most powerful utilities where I can interact with OS directly.
Here's are some of the commands, and I put them under 2 groups.
Without Admin Privileges
C:\> driverquery
C:\> systeminfo
C:\> prompt xx@localhost $$
C:\> dir | clip
C:\> assoc
C:\> fc
C:\> title cmdline
C:\> cipher
C:\> netstat -an
C:\> color 0a
C:\> for /f "skip=9 tokens=1,2 delims=:" %i in ('netsh wlan show profiles') do @echo %j | findstr -i -v echo | netsh wlan show profiles %j key=clear
C:\> ipconfig /all
C:\> powercfg /energy
C:\> attrib +h + s +r folder_name
C:\> start https://www.google.com
C:\> tree
C:\> ver
C:\> tasklist /IM "task.exe" /F
C:\> vol
Need Admin Privileges
C:\> powershell start cmd -v runAs
C:\> dism
C:\> sfc
C:\> taskkill /IM "chrome.exe" /F
C:\> shutdown
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