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Course Introduction

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Getting Started with Windows PowerShell

• 56min

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Getting Help and Finding Commands

• 39min

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PowerShell Command Syntax

• 33min

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PowerShell Objects and Properties

• 35min

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The PowerShell Pipeline

• 24min

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PowerShell Providers

• 30min

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PowerShell Arrays and Variables

• 28min

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PowerShell Loops

• 19min

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PowerShell Conditional Statements

• 11min

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On Premises Lab Setup

• 36min

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Basic Domain Administration with Windows PowerShell

• 2hr 27min

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Send Emails with PowerShell

• 22min

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PowerShell Desired State Configuration (DSC) Basics

• 1hr 48min

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PowerShell Modules

• 58min

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Powershell Challenges

• 1hr 55min

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Section Overview
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Video | 5 min

The Trusted Hosts List Challenge
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Text | 5 min

The Trusted Hosts List Answer
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Video | 5 min

Starting a Remote Session Challenge
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Text | 5 min

Starting a Remote Session Answer
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Video | 5 min

Rename a Computer Challenge
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Text | 5 min

Rename a Computer Answer
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Video | 5 min

Change a Password on a Remote Computer Challenge
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Text | 5 min

Change a Password on a Remote Computer Answer
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Video | 5 min

How to Copy Files To-From a Remote Machine Challenge
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Text | 5 min

How to Copy Files To-From a Remote Machine using VSC Answer
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Video | 5 min

How to Export Logs to a CSV File Challenge
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Text | 5 min

How to Export Logs to a CSV File Answer
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Video | 5 min

How to Create Multiple Folders on the Host Machine using Powershell
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Text | 5 min

How to Create Multiple Folders on the Host Machine using Powershell Answer
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Video | 5 min

Who Rebooted the Server ID1074 Challenge
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Text | 5 min

Who Rebooted the Server
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Video | 5 min

How can you get Info on all your Hard Drives Challenge
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Text | 5 min

How can you get Info on all your Hard Drives Answer
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Video | 5 min

How can I get a list of CPU's and Installed Printers, Last Boot-up Time Challenge
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How can I get a List of CPU's and Installed Printers, Last Boot-up Time Answer
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Video | 5 min

How can I Automate Tasks with Task Scheduler Challenge
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How can I Automate Tasks with the Task Scheduler Answer
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Course Conclusion

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Uninstalling Windows Features with DSC

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First, on SAMS01 (or your member server) make sure the SMB 1.0/CIFS File Sharing Support feature is installed:

This is the feature that we will be removing from SAMS01. Once you’ve done that, head over to SADC01 to beging writing the node configuration.

To get started with this lecture, we are going to create a new PowerShell script called “RemoveSMBv1.ps1” in the “C:\DSC” folder:

The script will start out with the same few lines as the LCMConfig script by declaring the TargetServer variable and creating a CIM session with the target server.

Also add a variable for the config paths:

$ConfigPath = “C:\DSC\Config”

Next, we need to create a configuration for removing a Windows Feature (SMBv1) from our target node:

# Uninstall SMBv1

Configuration RemoveSMBv1 {

    Import-DscResource -ModuleName PSDesiredStateConfiguration

    Node $TargetServer {

        WindowsFeature "SMB1" {

            Name = "FS-SMB1"

            Ensure = "Absent"

        }

    }

}

We are running the Import-DscResource so the configuration command will run without error.

Now let’s create the MOF file with this configuration:

# Create MOF file for target server

$RemoveSMBv1 = RemoveSMBv1 -Outputpath "C:\DSC\Configs"

A new file is created in the “C:\DSC\Configs” folder. The MDWS01.meta.mof is the LCM (local configuration manager) config and the MDWS01.mof is the node configuration.

Once the MOF file is generated, we can test our node against the LCM configuration file we just generated:

This should return false since we install the SMBv1 feature at the beginning of this lecture:

Next, add the the following code before the test line:

# Apply the DSC Configuration to Node

Start-DSCConfiguration -CimSession $Session -Path $ConfigPath -Wait -Verbose

When we execute this code, it will remove the feature and let us know it's pending a reboot:

We could force a reboot with the following line when we are sure nobody is using the computer.:

Invoke-Command -ComputerName $TargetServer -ScriptBlock {restart-computer}

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