Windows 10 does not keep PowerShell up-to-date for you. It usually ships with version 5, even though version 7 is the current version. Luckily, you can easily get the files and run the updater from within PowerShell itself.
First, check your current version with a simple get-host command. Both commands below will return your current version.
(Get-Host).version$Host.versionYour results will be something like this:
Major Minor Build Revision ----- ----- ----- -------- 5 1 19041 610
That is a very old version! Execute the command below to run the installer for the current stable version of PowerShell.
iex "& { $(irm https://aka.ms/install-powershell.ps1) } -UseMSI"If you also want to update your ISE to use the latest version, you will need to install Visual Studio Code from here: https://code.visualstudio.com/.
Once installed, launch it and go to view / extensions and select the current version of PowerShell. Press F1, then scroll down and select PowerShell: Enable ISE mode. Run your version command and you should see your major build is now the current year. For example, if installed today, you will see Major: 2021 Minor: 2 Build: 2 and Revision: -1
You can now use View / Appearance and change the appearance to your liking. I moved the sidebar to the right to get the familiar ISE feel. You can also turn it off completely to get a more focused environment.
Microsoft has a document with instructions on replicating the ISE experience in Visual Studio Code. How to replicate the ISE experience in Visual Studio Code for PowerShell v7