Function Uninstall-Program

{

<#

.SYNOPSIS

A function to uninstall a piece of software.

.DESCRIPTION

This function allows you to pass a software name and it will

attempt to uninstall it.

.PARAMETER Name

The name of the software to look for.

.EXAMPLE

PS C:\> Uninstall-Program -Name 'Screenconnect'

.NOTES

N/A

#>

Param

(

[Parameter(Mandatory = $True, Position = 0)]

[String]$Name

)

#Read installation information from the registry and get a list of installed software.

$RegistryLocation = Get-ChildItem "HKLM:\Software\Wow6432Node\Microsoft\Windows\CurrentVersion\Uninstall\"

foreach ($RegistryItem in $RegistryLocation)

{

#Check for the software we are looking for...

if ((Get-itemproperty $registryItem.PSPath).DisplayName -like "*$name*")

{

# Get the product code if possible

$productCode = (Get-itemproperty $registryItem.PSPath).ProductCode

# If a product code is available, uninstall using it

if ([string]::IsNullOrEmpty($productCode) -eq $false)

{

Write-Output "Uninstalling $name, ProductCode:$code"

$args="/uninstall $code"

[diagnostics.process]::start("msiexec", $args).WaitForExit()

$Result = 'Uninstall Attempted'

}

# If there is no product code, try to read the uninstall string

else

{

$uninstallString = (Get-itemproperty $registryItem.PSPath).UninstallString

if ([string]::IsNullOrEmpty($uninstallString) -eq $false)

{

# Grab the product key and create an argument string

$match = [RegEx]::Match($uninstallString, "{.*?}")

$args = "/x $($match.Value) /qb"

[diagnostics.process]::start("msiexec", $args).WaitForExit()

$Result = 'Uninstall Attempted'

}

else { $Result = "Unable to uninstall $name" }

}

}

}

}