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Function Invoke-WSUSClientFix {
<#
.SYNOPSIS
Performs a WSUS client reset on local or remote system.
.DESCRIPTION
Performs a WSUS client reset on local or remote system.
.PARAMETER Computername
Name of the remote or local system.
.NOTES
Name: Invoke-WSUSClientFix
Author: Boe Prox
DateCreated: 18JAN2012
DateModified: 28Mar2014
.EXAMPLE
Invoke-WSUSClientFix -Computername 'Server' -Verbose
VERBOSE: Server: Testing network connection
VERBOSE: Server: Stopping wuauserv service
VERBOSE: Server: Making remote registry connection to LocalMachine hive
VERBOSE: Server: Connection to WSUS Client registry keys
VERBOSE: Server: Removing Software Distribution folder and subfolders
VERBOSE: Server: Starting wuauserv service
VERBOSE: Server: Sending wuauclt /resetauthorization /detectnow command
Description
-----------
This command resets the WSUS client information on Server.
#>
[cmdletbinding(
SupportsShouldProcess=$True
)]
Param (
[parameter(ValueFromPipeLine=$True,ValueFromPipeLineByPropertyName=$True)]
[Alias('__Server','Server','CN')]
[string[]]$Computername = $Env:Computername
)
Begin {
$reghive = [microsoft.win32.registryhive]::LocalMachine
}
Process {
ForEach ($Computer in $Computername) {
Write-Verbose ("{0}: Testing network connection" -f $Computer)
If (Test-Connection -ComputerName $Computer -Count 1 -Quiet) {
Write-Verbose ("{0}: Stopping wuauserv service" -f $Computer)
$wuauserv = Get-Service -ComputerName $Computer -Name wuauserv
Stop-Service -InputObject $wuauserv
Write-Verbose ("{0}: Making remote registry connection to {1} hive" -f $Computer, $reghive)
$remotereg = [microsoft.win32.registrykey]::OpenRemoteBaseKey($reghive,$Computer)
Write-Verbose ("{0}: Connection to WSUS Client registry keys" -f $Computer)
$wsusreg1 = $remotereg.OpenSubKey('Software\Microsoft\Windows\CurrentVersion\WindowsUpdate',$True)
$wsusreg2 = $remotereg.OpenSubKey('Software\Microsoft\Windows\CurrentVersion\WindowsUpdate\Auto Update',$True)
#Begin deletion of registry values for WSUS Client
If (-Not [string]::IsNullOrEmpty($wsusreg1.GetValue('SusClientId'))) {
If ($PScmdlet.ShouldProcess("SusClientId","Delete Registry Value")) {
$wsusreg1.DeleteValue('SusClientId')
}
}
If (-Not [string]::IsNullOrEmpty($wsusreg1.GetValue('SusClientIdValidation'))) {
If ($PScmdlet.ShouldProcess("SusClientIdValidation","Delete Registry Value")) {
$wsusreg1.DeleteValue('SusClientIdValidation')
}
}
If (-Not [string]::IsNullOrEmpty($wsusreg1.GetValue('PingID'))) {
If ($PScmdlet.ShouldProcess("PingID","Delete Registry Value")) {
$wsusreg1.DeleteValue('PingID')
}
}
If (-Not [string]::IsNullOrEmpty($wsusreg1.GetValue('AccountDomainSid'))) {
If ($PScmdlet.ShouldProcess("AccountDomainSid","Delete Registry Value")) {
$wsusreg1.DeleteValue('AccountDomainSid')
}
}
If (-Not [string]::IsNullOrEmpty($wsusreg2.GetValue('LastWaitTimeout'))) {
If ($PScmdlet.ShouldProcess("LastWaitTimeout","Delete Registry Value")) {
$wsusreg2.DeleteValue('LastWaitTimeout')
}
}
If (-Not [string]::IsNullOrEmpty($wsusreg2.GetValue('DetectionStartTimeout'))) {
If ($PScmdlet.ShouldProcess("DetectionStartTimeout","Delete Registry Value")) {
$wsusreg2.DeleteValue('DetectionStartTimeout')
}
}
If (-Not [string]::IsNullOrEmpty($wsusreg2.GetValue('NextDetectionTime'))) {
If ($PScmdlet.ShouldProcess("NextDetectionTime","Delete Registry Value")) {
$wsusreg2.DeleteValue('NextDetectionTime')
}
}
If (-Not [string]::IsNullOrEmpty($wsusreg2.GetValue('AUState'))) {
If ($PScmdlet.ShouldProcess("AUState","Delete Registry Value")) {
$wsusreg2.DeleteValue('AUState')
}
}
Write-Verbose ("{0}: Removing Software Distribution folder and subfolders" -f $Computer)
Try {
Remove-Item "\\$Computer\c$\Windows\SoftwareDistribution" -Recurse -Force -Confirm:$False -ErrorAction Stop
} Catch {
Write-Warning ("{0}: {1}" -f $Computer,$_.Exception.Message)
}
Write-Verbose ("{0}: Starting wuauserv service" -f $Computer)
Start-Service -InputObject $wuauserv
Write-Verbose ("{0}: Sending wuauclt /resetauthorization /detectnow command" -f $Computer)
Try {
Invoke-WmiMethod -Path Win32_Process -ComputerName $Computer -Name Create `
-ArgumentList "wuauclt /resetauthorization /detectnow" -ErrorAction Stop | Out-Null
} Catch {
Write-Warning ("{0}: {1}" -f $Computer,$_.Exception.Message)
}
}
}
}
}