What does mean «new cross-platform PowerShell» in Windows 10?
The method below install PowerShell 7 alongside with the preinstalled PowerShell 5.1.
Step 1
winget search Microsoft.PowerShell
Step 2
winget install --id Microsoft.Powershell --source winget
Step 3
Create a shortcut for opening PowerShell 7.3 with administrative rights.
Step 4
Step 5
Add PowerShell 7 to the File Explorer context menu.
Step 6
Add PowerShell 7 to the File Explorer context menu.