I just copied the x86 powershell lnk from %appdata%\Microsoft\Windows\Start Menu\Programs\Windows PowerShell and replaced the path to the executable back to %SystemRoot%\system32\WindowsPowerShell\v1.0\powershell.exe, as none of the options in this thread seemed intuitive to me. For PowerShell 5.1 that is – some of the solutions here seem to be targeting PS7.