Which command can be used to check the PowerShell version installed on a Windows 10 computer?

• A. $SystemVersion
• B. $PSVersionTable
• C. Get-OSVersion
• D. Check-PSVersion

Answer: (B)

To check the installed version of PowerShell on a Windows 10 computer, the command $PSVersionTable is utilized. This command outputs a table containing various details about the PowerShell environment, including the version number. When executed in the PowerShell interface, $PSVersionTable returns a structured overview, notably showing the value for PSVersion, which explicitly indicates the current version of PowerShell.

The other options do not perform this function. For example, $SystemVersion is not a recognized command in PowerShell for retrieving version information. Similarly, Get-OSVersion and Check-PSVersion do not exist as standard commands in PowerShell and would not yield any relevant version data for PowerShell. Thus, using $PSVersionTable is the appropriate and effective method for checking the installed PowerShell version.