For over a decade, the blue-backed Windows PowerShell console (versions 1.0 through 5.1) was the backbone of Windows automation. It was powerful, but it was also limited, slow, and proprietary . Today, sticking with Windows PowerShell 5.1 is a technical debt you cannot afford.
[Environment]::SetEnvironmentVariable("PSModulePath", $env:PSModulePath + ";C:\Windows\System32\WindowsPowerShell\v1.0\Modules", "Machine") You must restart pwsh for this to take effect. If you are still using powershell.exe for anything other than maintaining legacy Exchange or AD scripts, you are losing performance (PowerShell 7 is up to 3x faster for loops and object pipelines) and security (PowerShell 7 supports the modern LogPipelineExecutionDetails and ConstrainedLanguageMode better). upgrading powershell
The modern standard is (often called "PowerShell Core"). It is open-source, cross-platform (Windows, Linux, macOS), and significantly faster. If your automation scripts still begin with #requires -Version 5.1 , you are working with the past. For over a decade, the blue-backed Windows PowerShell