関連ワード:  upgrade powershell 7 command    upgrade powershell 7 command line    update powershell 7 command    update powershell 7 command line    upgrade powershell 5.1 to 7 command line    update powershell windows 7 command line    upgrade powershell 5 to 7 command line    how to upgrade powershell to version 7    how do i upgrade to powershell 7