Set Cursor.ps1

#### Settings to Apply
# The cursor scheme to apply (not used if scheme source is Windows Default)
$CursorScheme = ""
# 0 - Windows Default
# 1 - User Scheme
# 2 - System Scheme
$CursorSchemeSource = 0
# The uniform cursor size (default: 32x32 pixels)
$CursorSize = 32

#### Modify Registry
Set-ItemProperty -Path "HKCU:\Control Panel\Cursors" -Name "(Default)" -Value $CursorScheme
Set-ItemProperty -Path "HKCU:\Control Panel\Cursors" -Name "Scheme Source" -Value $CursorSchemeSource
Set-ItemProperty -Path "HKCU:\Control Panel\Cursors" -Name "CursorBaseSize" -Value $CursorSize
$schemeKeys = @(
    "Arrow", # Normal Select
    "Help", # Help Select
    "AppStarting", # Working in Background
    "Wait", # Busy
    "Crosshair", # Precision Select
    "IBeam", # Text Select
    "NWPen", # Handwriting
    "No", # Unavailable
    "SizeNS", # Vertical Resize
    "SizeWE", # Horizontal Resize
    "SizeNWSE", # Diagonal Resize 1
    "SizeNESW", # Diagonal Resize 2
    "SizeAll", # Move
    "UpArrow", # Alternate Select
    "Hand", # Link Select
    "Pin", # Location Select
    "Person" # Person Select
)

switch ($CursorSchemeSource) {
    0 {
        $schemeValues = @()
        for ($i=0; $i -lt $schemeKeys.length; $i++) {
            $schemeValues += ""
        }
    }
    1 {
        $schemeValues = (Get-Item -Path "HKCU:\Control Panel\Cursors\Schemes").GetValue(
            $CursorScheme,  # registry key
            $null,   # default value to return if not exist
            'DoNotExpandEnvironmentNames' # options
        ).Split(',')
    }

    2 {
        $schemeValues = (Get-Item -Path "HKLM:\SOFTWARE\Microsoft\Windows\CurrentVersion\Control Panel\Cursors\Schemes").GetValue(
            $CursorScheme,  # registry key
            $null,   # default value to return if not exist
            'DoNotExpandEnvironmentNames' # options
        ).Split(',')
     }
}

for ($i=0; $i -lt $schemeKeys.length; $i++) {
    Set-ItemProperty -Path "HKCU:\Control Panel\Cursors" -Name $schemeKeys[$i] -Value $schemeValues[$i]
}


#### Notify Windows of Changes
$SPI_SETCURSORS = 0x0057
$SPI_SETCURSORSIZE = 0x2029 # supposedly undocumented, so i'll give it some name
$SPIF_UPDATEINIFILE = 0x01
$SPIF_SENDCHANGE = 0x02

$CSharpSig = @'
[DllImport("user32.dll", EntryPoint = "SystemParametersInfo")]
public static extern bool SystemParametersInfo(
                  uint uiAction,
                  uint uiParam,
                  uint pvParam,
                  uint fWinIni);
'@
$CursorRefresh = Add-Type -MemberDefinition $CSharpSig -Name WinAPICall -Namespace SystemParamInfo -PassThru

$CursorRefresh::SystemParametersInfo($SPI_SETCURSORSIZE, 0, $CursorSize, $SPIF_UPDATEINIFILE);
$CursorRefresh::SystemParametersInfo($SPI_SETCURSORS, 0, 0, $SPIF_UPDATEINIFILE -bor $SPIF_SENDCHANGE);

####
Write-Host "Done."