https://www.youtube.com/watch?v=H6dgqTpAtkk (I watched the videseveral months ago, it isn’t some kid trying to get views)

This is a group policy that blocks cmd windows from starting, also blocks .bat and .cmd files. You have to make a separate group policy to block PowerShell, which may have been overlooked by your sysadmin, so you could try using PowerShell instead.

Otherwise, you will have to just use workarounds, like using run or another program that allows for shell access (such as Python using os.system).