Change the prompt shell to show without current folder only without full path

Microsoft.PowerShell_profile.ps1

<#
  1. Add following function to your powershell profile.
  If doesn't exist create under $ENV:USERPROFILE\Documents\WindowsPowerShell\Microsoft.PowerShell_profile.ps1
#>
function prompt {
  $p = Split-Path -leaf -path (Get-Location)
  "$p> "
}
<#
  2. Save the profile and restart PowerShell
  3. (Optional) If you get the error message that says you are not allowed to run the scripts,
  Run following command and restart the Powershell again.
#>

Set-ExecutionPolicy RemoteSigned -Scope CurrentUser