[Already__Taken]

1. Start with the ISE, comes with windows. If you can't find it "C:\Windows\System32\WindowsPowerShell\v1.0\powershell_ise.exe" Otherwise VSCode with a plugin is nice but you miss some intellisense magic the ise can do.

1a. with powershell as an administrator run `Update-Help` That's all the help for the commands installed and up to date from online. Get-help <command> and don't forget to use wildcards `get-help get-*` will show every single get command you can run. Get-Verb will show what you should expect things to be called. `Get-module -listAvailable` worth looking at too. Tab complete is your friend.

1b. This and the advenced one are great although quite slow; https://mva.microsoft.com/en-us/training-courses/getting-sta...

2. No? Maybe stuff that's already fine or where working out the signing policy is a hassle.

3. Powershell is wrapped into the "Windows Management Framework" you can install. WMF 5 has PS 5, can install down to Windows 7. 7 shipped with PS 2.0 where you could write cmdlets in powershell itself, before that you had to use C++ and visual studio. PS3.0 is the minimum it's really pleasant to use but 2.0 support isn't crazy.