Powershell Set default printer when the installation is done - powershell

Question

I have exported my network printers to an .xml file so they can be installed on a new PC.
Also, I haveexportet the default printer to a file so you can set a default printer after the installation.
The installation works fine. The problem is that the installation of the printers has not been completed before the script try to set the default printer.
This is my script to install the printers:
#Install the printer
$PrinterList = Import-Clixml H:\Backup\printers_export.xml
foreach($Printer in $PrinterList) {
Invoke-Expression 'rundll32 printui.dll PrintUIEntry /in /q /n $($Printer.Name)'
}
# Set default printer
(New-Object -ComObject WScript.Network).SetDefaultPrinter((get-content h:\Backup\DefaultPrinter.txt))
One solution I have found is to put a Start-Sleep -s 15 after the first calls, can anyone point me to a better solution?

Answer 1

Add do/while loop condition to wait for default printer configuration is done. Like so:
$DP = (New-Object -ComObject WScript.Network).SetDefaultPrinter((Get-Content H:\Backup\DefaultPrinter.txt))
do {
Start-Sleep -Seconds 1
[wmi]$wmi = Get-WmiObject -Query " SELECT * FROM Win32_Printer" |
Where { $_.Name -eq 'PUT YOUR DEFAULT PRINTER NAME HERE' -and $_.Default -eq $true}
}while(-not$wmi)

Answer 2

This is the script right now:
Restore printer
$PrinterList = Import-Clixml H:\Backup\printers_export.xml
FOREACH ($Printer in $PrinterList) {
Invoke-Expression 'rundll32 printui.dll PrintUIEntry /in /q /n $($Printer.Name)'
}
RUNDLL32.EXE user32.dll,UpdatePerUserSystemParameters
Set Default printer
$DP = (New-Object -ComObject WScript.Network).SetDefaultPrinter((Get-Content H:\Backup\DefaultPrinter.txt))
do {
Start-Sleep -Seconds 1
[wmi]$wmi = Get-WmiObject -Query " SELECT * FROM Win32_Printer" |
Where { $.Name -eq '$DP' -and $.Default -eq $true}
}while(-not$wmi)
It does not work.
Can not find the default printer and the script keeps running.