Using DinoPass in PowerShell

This is a nice little trick I learnt whilst automating domain user creation with PowerShell, I found generating passwords in PowerShell was always ugly. Just see the example below from a previous post I’d made:

[string]$initialpassword = ([char[]](Get-Random -input $(47..57 + 65..90 +97..122) -count 8)) + (Get-Random -minimum 0 -maximum 10)

$passwordwithspacesremoved = $initialpassword.Replace(' ','')

$convertedpassword = ConvertTo-SecureString -AsPlainText $passwordwithspacesremoved -Force

This would generate a password like “cDUtxlvM5” which is just about as ugly as the code used to create it.

So I decided to use DinoPass instead since it created better looking passwords without the faff of generating them in PowerShell. This is a the code I used:

Invoke-WebRequest -Uri https://www.dinopass.com/password/strong | Select-Object -ExpandProperty content

Which would give me a much nicer, but still secure, password like “poorJump62”. Then to use it when automating domain user creation, I would use the below and put the whole thing into a variable that I would set the password to:

$super_secure_password = Invoke-WebRequest -Uri https://www.dinopass.com/password/strong | Select-Object -ExpandProperty content | ConvertTo-SecureString -AsPlainText -Force

Enjoy!

Blackjack in PowerShell

This is a little function that mimics a simplified version of blackjack. I have wrapped it in a function for cleanliness and so that it can be called again.

The rules are below:

  • Get a higher total than the dealer
  • Keep your total under 21 or you will be bust
  • That’s it

Here is the code for you to try this out yourself, hope you enjoy!

function blackjack{

    #CHANGING NAME OF WINDOW
    $pshost = Get-Host
    $pswindow = $pshost.UI.RawUI
    $pswindow.WindowTitle = "Blackjack" 

    #RESETTING GAME OVER VARIABLE
    $blackjack_game_over = $false

    #GENERATING A RANDOM TOTAL FOR THE DEALER
    $blackjack_dealer_total = Get-Random -Minimum 14 -Maximum 22

    #CREATING AN ARRAY FOR THE USERS CARD NUMBERS
    $blackjack_user_card_array = [System.Collections.ArrayList]::new("")

    #GENERATING A RANDOM NUMBER FOR THE USERS FIRST CARD
    $blackjack_user_first_card = Get-Random -Minimum 1 -Maximum 11

    #ADDING USERS FIRST CARD TO ARRAY
    $blackjack_user_card_array.Add($blackjack_user_first_card)

    #CREATING A VARIABLE TO COUNT USERS TOTAL
    $blackjack_user_total = $blackjack_user_first_card

    Clear-Host

    Write-Host "Your first card is $blackjack_user_first_card"

    #DO THIS (PLAY GAME) UNTIL THE GAMEOVER VARIABLE IS TRUE
    do {
        #GET USER INPUT
        do {$blackjack_input = Read-Host "Take another card? (Y or N)"}while (("y","n") -notcontains $blackjack_input)

        #IF USER INPUT IS VALID AND ISN'T BUST AND WANTS ANOTHER CARD
        if ($blackjack_input -eq "y" -and $blackjack_user_total -le 21){

            #GENERATE A NEW CARD FOR THE USER
            $blackjack_user_new_card = Get-Random -Minimum 1 -Maximum 11

            #ADD NEW CARD TO CARD ARRAY
            $blackjack_user_card_array.Add($blackjack_user_new_card)

            #ADD NEW CARD TO CARD TOTAL
            $blackjack_user_total = $blackjack_user_total + $blackjack_user_new_card

            Clear-Host

            Write-Host "You have $blackjack_user_card_array"

            #IF THE USER IS BUST
            if ($blackjack_user_total -gt 21){
                Write-Host "You went bust! The dealer won with " -ForegroundColor Red -NoNewline
                Write-Host $blackjack_dealer_total 
                $blackjack_game_over = $true
            }
            
        #IF THE USER DOESNT WANT ANOTHER CARD
        }else{

            Clear-Host
            
            #OUTPUTTING THE FINAL SCORE
            #Write-Host "You had $blackjack_user_total and the dealer had $blackjack_dealer_total"

            #SWITCH TO SEE WHO WON
            switch ($blackjack_user_total){
                {$_ -gt 21}{Write-Host "You went bust! The dealer won with " -ForegroundColor Red -NoNewline; Write-Host $blackjack_dealer_total; $blackjack_game_over = $true; break}
                {$_ -eq $blackjack_dealer_total}{Write-Host "It's a draw, the dealer also had $blackjack_dealer_total"; $blackjack_game_over = $true; break}
                {$_ -gt $blackjack_dealer_total}{Write-Host "You win! The dealer only had " -ForegroundColor Green -NoNewline; Write-Host $blackjack_dealer_total; $blackjack_game_over = $true; break}
                {$_ -lt $blackjack_dealer_total}{Write-Host "You lose! The dealer won with " -ForegroundColor Red -NoNewline; Write-Host $blackjack_dealer_total; $blackjack_game_over = $true; break}
                default {Write-Host "Something happeneds that wasn't accounted for!" -ForegroundColor Red; break}
            }
        }
    }until ($blackjack_game_over)

    #ASK USER IF THEY WANT TO REPLAY UNTIL INPUT IS A Y OR N
    do {$blackjack_play_again = Read-Host "Do you want to play again? Y or N"} while (("y","n") -notcontains $blackjack_play_again)

    #SWITCH TO EITHER PLAY AGAIN OR GO TO MAIN MENU
    switch ($blackjack_play_again){
        "y" {blackjack}
        "n" {exit}
        default {exit}
    }   
}

 

Enumerating PowerShell Options

This is quite a handy trick that I use when designing or just fiddling around with what I can do with PowerShell WinForms. The last time I used this was to get all the possible colours I could use for my form background, and also check the possible options for my border on a panel.

So if I wanted to find all the possible colours available for my forms background, I would use the following:

[enum]::GetValues([System.ConsoleColor])

Black
DarkBlue
DarkGreen
DarkCyan
DarkRed
DarkMagenta
DarkYellow
Gray
DarkGray
Blue
Green
Cyan
Red
Magenta
Yellow
White

or if I wanted to find out all the possible borders for my panel as I stated above, I would use the following:

[enum]::GetValues([System.Windows.Forms.BorderStyle])

None
FixedSingle
Fixed3D

Hope this helps, I know this is usually helpful for me. Enjoy!

Swaks Email Scripting

Hi, in this blog post I will show you how I configured Swaks for sending emails using SMTP using my custom SMTP server.

First I ran the following command to install swaks:

sudo apt-get install swaks

With swaks installed, I could start building a test command just to
see if this would actually work. I started with the below command:

swaks --to destination@email.com --from source@email.com --auth --auth-user=source@email.com --auth-password=passwordforsource@email.comaccount --server smtp.example.com -tls

This gave me an error along the lines of “Could not authenticate – connection refused” after talking to the people hosting my SMTP server, I found out that I needed to make sure that I was using port 587 and not the default port of 465.

So I made sure that my command explicitly used that port by adding it to the server parameter and managed to get an email to successfully send. You can see the code I used below:

swaks --to destination@email.com --from source@email.com --auth --auth-user=source@email.com --auth-password=passwordforsource@email.comaccount --server smtp.example.com:587 -tls

Extra

I wanted to use this in a script so that I could launch the script and an email would get sent. I also wanted to change what would get sent in the actual email since currently, it was just using the default values.

After 5 or so minutes of cobbling a script together, I came up with what you can see below:

#!/bin/bash

hostname=$(hostname)
uptime=$(uptime)

swaks --to destination@email.com \
--from=source@email.com \
--auth \
--auth-user=source@email.com \
--auth-password=password-for-source-email \
--server smtp.example.com:587 \
--body "$hostname - uptime is $uptime" \
--header "Subject: $hostname is still up" \
-tls \

Now I can send this email whenever I want, I even created a CRON job to send the email every hour. Enjoy!

Make Website Confirm Before Leaving

Long pause between blogs here but busy life = slow blog.

In this blog, I will discuss how I created a simple webpage that would allow me to leave a pinned tab open in my web browser that would create a popup box when trying to leave the site. The popup box can be seen below:

This is helpful because Chrome doesn’t give the option to make sure you actually want to close the window. So if you have ever, just like myself, been 2 hours deep into researching something that seemed really important at the time and then accidentally clicked the red X and have it all close, then you know how I feel.

So I created my own website that I would load and pin in the Chome windows so that this wouldn’t happen to me. This is the code that I used:

<script>
 window.onbeforeload = function(){
  return "Do you really want to leave?";
 };
</script>

and the site that I created is currently live at noautoclose.mharwood.uk

Just make sure to click anywhere on the page for the script to work, enjoy!

LAPS Winform

*UPDATE*

I have created the *final* iteration of this WPF form which can be found here

*UPDATE*

I didn’t like having to remote desktop into my domain controller and couldn’t figure out if there was a LAPS tool included in RSAT tools so I decided just to make my own and to add some extra features.

I wanted the GUI to look pretty much identity to the actual LAPS GUI. You can see the difference below:

You might be able to see that I  changed the “Set” button to say “Set and Update”. This was because I wanted the form to also attempt to update the group policy settings on the computer so that it would get a new password a lot quicker than the original GUI.

There’s not much else I can say, I will leave the entire script below for you to copy and paste. You will need to add the domain controller for your environment in the $domaincontroller variable at the top of the script. I have converted this to an EXE and run whenever I need it, never skips a beat. Let me know how you get on with it. Enjoy!

#ADDING FORM ASSEMBLY
Add-Type -AssemblyName system.windows.forms

#ENTER DOMAIN CONTROLLER BELOW
$domaincontroller = ""

#BASE 64 ICON
[string]$icon64 = "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"

#CONVERTING BASE 64 ICON TO SOMETHING USEFUL
$iconstream = [System.IO.MemoryStream][System.Convert]::FromBase64String($icon64)
$iconbmp = [System.Drawing.Bitmap][System.Drawing.Image]::FromStream($iconstream)
$iconhandle = $iconbmp.GetHicon()
$icon = [System.Drawing.Icon]::FromHandle($iconhandle)

#LAPS UI FORM
$lapsform = New-Object system.windows.forms.form    
$lapsform.Size = New-Object System.Drawing.Size(400,320)
$lapsform.Text = "                                     LAPS UI         "
$lapsform.StartPosition = "centerscreen"
$lapsform.FormBorderStyle = "fixed3d"
$lapsform.Icon = $icon

#LAPS TEXTBOX LABEL
$lapsform_computername_textbox_label = New-Object System.Windows.Forms.Label
$lapsform_computername_textbox_label.Location = New-Object System.Drawing.Point(20,20)
$lapsform_computername_textbox_label.Size = New-Object System.Drawing.Size(100,15)
$lapsform_computername_textbox_label.Text = "ComputerName"
$lapsform.Controls.Add($lapsform_computername_textbox_label)

#LAPS TEXTBOX
$lapsform_computername_textbox = New-Object System.Windows.Forms.TextBox
$lapsform_computername_textbox.Location = New-Object System.Drawing.Point(21,40)
$lapsform_computername_textbox.Size = New-Object System.Drawing.Size(250,15)
$lapsform.Controls.Add($lapsform_computername_textbox)

#VARIABLE FOR KEYDOWN
$lapsform_computername_textbox_keydown = {}

#KEYDOWN ASSIGNED
$lapsform_computername_textbox_keydown = [System.Windows.Forms.KeyEventHandler]{
    if ($_.keycode -eq 'Enter'){
        $lapsform_search_button.PerformClick()
    }
}

#REGISTER KEYDOWN HANDLER TO COMPUTER TEXTBOX
$lapsform_computername_textbox.add_keydown($lapsform_computername_textbox_keydown)

#LAPS SEARCH BUTTON
$lapsform_search_button = New-Object System.Windows.Forms.Button
$lapsform_search_button.Location = New-Object System.Drawing.Point(290,40)
$lapsform_search_button.Size = New-Object System.Drawing.Size(60,20)
$lapsform_search_button.Text = "Search"
$lapsform.Controls.Add($lapsform_search_button)

#LAPS SEARCH BUTTON LOGIC
$lapsform_search_button.add_click({
    if ($lapsform_computername_textbox.Text.Length -le 0){
        $lapsform_output_label.Text = "You must enter a computer name"
    }else{
        try{
            #getting text from textbox
            $computernametext = $lapsform_computername_textbox.Text

            #checking if computer is in AD
            $checkad = Get-ADComputer -Identity $computernametext
        
            #invoking admpwdpassword command on $domaincontroller
            $invokegetadmpwd = Invoke-Command -ComputerName $domaincontroller -ScriptBlock {get-admpwdpassword -ComputerName $args[0] } -ArgumentList $computernametext | Select-Object Password, expirationtimestamp
        
            #getting password and password expiration date
            $lapsform_password_textbox.Text = $invokegetadmpwd | Select-Object -ExpandProperty password
            $lapsform_password_expires_textbox.Text = $invokegetadmpwd | Select-Object -ExpandProperty expirationtimestamp

            $lapsform_output_label.text = ""
        }catch{

            if (!$checkad){
                $lapsform_output_label.Text = "Computer not found"
            }
            #clears password and expiry textbox
            $lapsform_password_textbox.Text = ""
            $lapsform_password_expires_textbox.Text = ""
        }
    }
})

#PASSWORD TEXTBOX LABEL
$lapsform_password_textbox_label = New-Object System.Windows.Forms.Label
$lapsform_password_textbox_label.Location = New-Object System.Drawing.Point(20, 90)
$lapsform_password_textbox_label.Size = New-Object System.Drawing.Size(100,20)
$lapsform_password_textbox_label.Text = "Password"
$lapsform.Controls.Add($lapsform_password_textbox_label)

#PASSWORD TEXTBOX
$lapsform_password_textbox = New-Object System.Windows.Forms.TextBox
$lapsform_password_textbox.Location = New-Object System.Drawing.Point(21,110)
$lapsform_password_textbox.Size = New-Object System.Drawing.Size(250,15)
$lapsform_password_textbox.ReadOnly = $true
$lapsform_password_textbox.Font = New-Object System.Drawing.Font("courier",12,[System.Drawing.FontStyle]::Regular)
$lapsform.Controls.Add($lapsform_password_textbox)

#PASSWORD EXPIRES TEXTBOX LABEL
$lapsform_password_expires_textbox_label = New-Object System.Windows.Forms.Label
$lapsform_password_expires_textbox_label.Location = New-Object System.Drawing.Point(20,145)
$lapsform_password_expires_textbox_label.Size = New-Object System.Drawing.Size(100,20)
$lapsform_password_expires_textbox_label.Text = "Password Expires"
$lapsform.Controls.Add($lapsform_password_expires_textbox_label)

#PASSWORD EXPIRES TEXTBOX
$lapsform_password_expires_textbox = New-Object System.Windows.Forms.TextBox
$lapsform_password_expires_textbox.Location = New-Object System.Drawing.Point(21,165)
$lapsform_password_expires_textbox.Size = New-Object System.Drawing.Size(250,15)
$lapsform_password_expires_textbox.ReadOnly = $true
$lapsform.Controls.Add($lapsform_password_expires_textbox)

#DATETIME PICKER LABEL
$lapsform_datetime_picker_label = New-Object System.Windows.Forms.Label
$lapsform_datetime_picker_label.Location = New-Object System.Drawing.Point(20,200)
$lapsform_datetime_picker_label.Size = New-Object System.Drawing.Size(150,20)
$lapsform_datetime_picker_label.Text = "New Expiration Time"
$lapsform.Controls.Add($lapsform_datetime_picker_label)

#DATETIME PICKER
$lapsform_datetime_picker = New-Object System.Windows.Forms.DateTimePicker
$lapsform_datetime_picker.Location = New-Object System.Drawing.Point(21,220)
$lapsform_datetime_picker.Size = New-Object System.Drawing.Size(250,15)
$lapsform_datetime_picker.Format = "custom"
$lapsform_datetime_picker.CustomFormat = "dd MMMM yyyy"
$lapsform.Controls.Add($lapsform_datetime_picker)

#DATETIME PICKER SET BUTTON
$lapsform_datetime_set_button = New-Object System.Windows.Forms.Button
$lapsform_datetime_set_button.Location = New-Object System.Drawing.Point(285,220)
$lapsform_datetime_set_button.Size = New-Object System.Drawing.Size(91,20)
$lapsform_datetime_set_button.Text = "Set and Update"
$lapsform.Controls.Add($lapsform_datetime_set_button)

$lapsform_datetime_set_button.add_click({

    if ($lapsform_computername_textbox.Text.Length -le 0){
        $lapsform_output_label.Text = "You must enter a computer name"
    }else{
        try{    
            $datetimepickervalue = $lapsform_datetime_picker.value.ToString("MM dd yyyy")
            #getting text from textbox
            $computernametext = $lapsform_computername_textbox.Text
    
            #checking if computer is in AD
            $checkad = Get-ADComputer -Identity $computernametext
            
            #invoking admpwdpassword command on $domaincontroller
            Invoke-Command -ComputerName $domaincontroller -ScriptBlock {reset-admpwdpassword -ComputerName $args[0] -wheneffective $args[1] } -ArgumentList $computernametext, $datetimepickervalue 

            #setting value of output label
            $lapsform_output_label.Text = "Password reset request was successful - GP updating - PLEASE WAIT"

            Invoke-GPUpdate -Computer $computernametext -ErrorAction SilentlyContinue

            $lapsform_output_label.Text = "Finished"
        }catch{
            #checking if computer is in AD
            if (!$checkad){
                $lapsform_output_label.Text = "Computer not found"
            }else{
                write-host "Another issue - WinRM probably isn't allowed..."
            }
    
        }

    }
})

#OUTPUT TEXTBOX
$lapsform_output_label = New-Object System.Windows.Forms.Label
$lapsform_output_label.Location = New-Object System.Drawing.Point(1,265)
$lapsform_output_label.Size = New-Object System.Drawing.Size(385,20)
$lapsform_output_label.BackColor = "white"
$lapsform_output_label.BorderStyle = "fixedsingle"
$lapsform.Controls.Add($lapsform_output_label)

#LAPS UI FORM DIALOG
[void]$lapsform.ShowDialog()

Unix Permissions Winform

In this post, I will show case a winform application that I have just finished building which will tell you the correct command when given the required permissions. For example, a read permission is identified as a 4 in Unix environments.

I have created a small table below:

 Permission Level  Permission Bit
 Read  4
 Write  2
 Execute  1

Since you need to define permissions for: the owner; owner group and others, you need to supply 3 permission bits per command. Plus one more for special permissions at the beginning but we can ignore that for now.

So if we wanted to give the below permissions:

Special – ignore

Owner – read (4), write(2) and execute(1)

Owner group – read(4) and write(2)

Other – read(4)

we would use the following command: chmod 0764 <path-to-file>

Now we can get on with the actual winform… I created this to tell me what permissions I needed to assigned. Below is a screenshot of the winform:

Front Winform

This also keeps a short history of the permissions in the history textbox which is flushed after so long to stop the textbox from overflowing. Here is a download for the project, in the zip folder is both a ps1 file and an exe file. Enjoy!

 

 

 

Coloured BASH Output Using TPUT

From my previous post, found here, you can see that I have formatted the text to be a specific colour depending on what sort of output I get. So for errors I make the text red and for successful messages I make the text green.

This is easy to implement into BASH scripts and a lot of other formatting can be applied as well. In this post, I will be covering the colorization (probably not a word), underlining, bold text and resetting the changes.

Colour Possibilities:

  • 0 – Black
  • 1 – Red
  • 2 – Green
  • 3 – Yellow
  • 4 – Blue
  • 5 – Magenta
  • 6 – Cyan
  • 7 – White
$(tput setaf 1)TEXT HERE

Bold Text:

#Starts bold characters

$(tput bold)TEXT HERE

#Ends bold characters

$(tput sgr0)TEXT HERE

I would just like to add here that tput sgr0 removes all formatting and returns text to the default style and colour.

Underlining:

#Starts underlining

$(tput smul)TEXT HERE

#Ends underlining

$(tput rmul)TEXT HERE

Below is a full script which includes all the possible combinations of the examples above, apart from black text.

#!/bin/bash

echo "
regular bold underline
$(tput setaf 1)Text $(tput bold)Text $(tput sgr0)$(tput setaf 1)$(tput smul)Text$(tput rmul)
$(tput setaf 2)Text $(tput bold)Text $(tput sgr0)$(tput setaf 2)$(tput smul)Text$(tput rmul)
$(tput setaf 3)Text $(tput bold)Text $(tput sgr0)$(tput setaf 3)$(tput smul)Text$(tput rmul)
$(tput setaf 4)Text $(tput bold)Text $(tput sgr0)$(tput setaf 4)$(tput smul)Text$(tput rmul)
$(tput setaf 5)Text $(tput bold)Text $(tput sgr0)$(tput setaf 5)$(tput smul)Text$(tput rmul)
$(tput setaf 6)Text $(tput bold)Text $(tput sgr0)$(tput setaf 6)$(tput smul)Text$(tput rmul)
$(tput setaf 7)Text $(tput bold)Text $(tput sgr0)$(tput setaf 7)$(tput smul)Text$(tput rmul)
"

I know it looks quite horrible in the source code but this is what the output looks like:

Full possibilities

Enjoy!

Server Reboot Script

Running a little low on content this last few months, plus I’ve been busy with other work stuff.

I had the requirement to create a PowerShell script that would get the uptime of a server and then decide whether or not the server needed rebooting.

I also wanted the script to randomize the reboot of the servers, that way if there are multiple servers that need rebooting at once, they don’t cause a power spike or resource issues on the hosts. I did this by creating a random number between 1 and 5 and then if the number equals 5, the server is rebooted. If not then the server isn’t rebooted.

This is the script that I ended up with and what is currently being tested:

$loglocation = "C:\scripts\reboot\log"
$dateforfile = Get-Date

#GETS UPTIME IN DAYS
$lastbootuptime = Get-WmiObject win32_operatingsystem
$uptime = (Get-Date) - ($lastbootuptime.converttodatetime($lastbootuptime.lastbootuptime))
$uptimeindays = $uptime.days

#GETS RANDOM NUMBER
$randomnumber = Get-Random -Minimum 1 -Maximum 6

if ($uptimeindays -ge "14"){

 Add-Content -Path "$loglocation\$env:COMPUTERNAME.txt" -Value @"
=====================================================================================
Server restarted at:
$dateforfile
This was an immediate shutdown as the server had been up for $uptimeindays days
"@

 Restart-Computer -Force

}elseif ($uptimeindays -lt "14" -and $uptimeindays -ge "7"){

    if ($randomnumber -eq "5"){

        Add-Content -Path "$loglocation\$env:COMPUTERNAME.txt" -Value @"
=====================================================================================
Server restarted at :
$dateforfile
This was a random restart as uptime was only $uptimeindays days
"@
        Restart-Computer -Force
    }else{

        Add-Content -Path "$loglocation\$env:COMPUTERNAME.txt" -Value @"
=====================================================================================
Server NOT restarted
$dateforfile
This was not randomly restarted. Uptime is currently $uptimeindays days. Random number was $randomnumber
"@
    }
}else{

Add-Content -Path "loglocation\$env:COMPUTERNAME.txt" -Value @"
=====================================================================================
No restart required
$dateforfile
No restart required since uptime is only $uptimeindays days
"@
}

The first time I created this script and set it up as a scheduled task, nothing happened. Turns out that I needed the -Force parameter in order for the server to be rebooted.

This will later be used in a group policy without the log creating as that is only necessary in the testing stage.

Enjoy!

 

Creating a Logon Script To Cleanup User Directories

In this post, I’ll discuss how I created a PowerShell script that runs when a user logs out of a terminal server and cleans up a directory in their home folder that was filling up with space due to application crashes.

This is the script I created:

$username = $ENV:USERPROFILENAME

$testpath = Test-Path -Path "$username\AppData\Local\Microsoft\Windows\ApplicationFolder"

if ($testpath -eq $true){

 $items = Get-ChildItem - Path "$username\AppData\Local\Microsoft\Windows\ApplicationFolder"

 foreach($i in $items){

  Remove-Item -Path "$username\AppData\Local\Microsoft\Windows\ApplicationFolder\$i" -Recurse -Confirm:$FALSE

 }

}else{}

This code will get the users profile root path and then check if the application folder exists, if it doesn’t then the script ends. If it does exist, the script will cycle through each entry and remove it.

The -Confirm:$FALSE parameter was added because the script kept asking for confirmation when deleting each item. This stops this behaviors and deletes each item without a confirmation prompt.

Now that I have the script and it is working as expected, I create a local group policy that will use:

Name – “powershell.exe”

Parameters – “-F “C:\path\to\file.ps1”

You can see this in the screenshot below:

Logoff script group policy

 

This group policy was added under:

User Configuration – Windows Settings – Scripts (Logon/Logoff) – Logoff

Hopefully you can replicate what I have done and don’t experience any issue. Note that you might need to change the script execution policy on the machine before this works properly. Just something to keep in mind if the group policy isn’t working. Enjoy!