PowerShell profile configuration for history search via up/down arrow keys.

$HOME\Documents\WindowsPowerShell\Microsoft.PowerShell_profile.ps1

Import-Module PSReadLine
Import-Module posh-git

Set-PSReadLineOption -HistoryNoDuplicates:$True

Set-PSReadLineKeyHandler -Key UpArrow -Function HistorySearchBackward
Set-PSReadLineKeyHandler -Key DownArrow -Function HistorySearchForward

# Revert posh-git prompt to default
function prompt {
    'PS ' + $(Get-Location) + $(if ($nestedpromptlevel -ge 1) { '>>' }) + '> '
}