If your shortcuts aren't responding, check these three common culprits:
Here’s a long, detailed review of the across major operating systems. minimize window keyboard shortcut
Using the keyboard instead of the mouse reduces "micromoves." Over a 10-hour workday, switching between the mouse and keyboard hundreds of times adds up to significant physical strain and lost time. By memorizing the minimize shortcut, you can: If your shortcuts aren't responding, check these three
Keyboard shortcut for minimizing maximized windows - Microsoft Q&A If your shortcuts aren't responding