Function global:Fix-WindowsScriptingComponents
{
## List of all scripting component DLL files
$DLL_FILES = @("${Env:WINDIR}\system32\vbscript.dll",
               "${Env:WINDIR}\system32\jscript.dll",
               "${Env:WINDIR}\system32\dispex.dll",
               "${Env:WINDIR}\system32\scrobj.dll",
               "${Env:WINDIR}\system32\scrrun.dll",
               "${Env:WINDIR}\system32\wshext.dll"
               "${Env:WINDIR}\system32\wshom.ocx",
               "${Env:WINDIR}\syswow64\vbscript.dll",
               "${Env:WINDIR}\syswow64\jscript.dll",
               "${Env:WINDIR}\syswow64\dispex.dll",
               "${Env:WINDIR}\syswow64\scrobj.dll",
               "${Env:WINDIR}\syswow64\scrrun.dll",
               "${Env:WINDIR}\syswow64\wshext.dll",
               "${Env:WINDIR}\syswow64\wshom.ocx")

## Unregister all DLLs
ForEach ($dll in $DLL_FILES)
{
    If ( Test-Path $dll )
    {
        If ( $dll -Match "syswow64" ) { $REGSVR32 = "${Env:WINDIR}\syswow64\regsvr32" } Else { $REGSVR32 = "regsvr32" }
        Start-Process "${REGSVR32}" -ArgumentList "/u /s ${dll}" -Wait
    }
}

## Register all DLLs
ForEach ($dll in $DLL_FILES)
{
    If ( Test-Path $dll )
    {
        If ( $dll -Match "syswow64" )
        { $REGSVR32 = "${Env:WINDIR}\syswow64\regsvr32" } Else { $REGSVR32 = "regsvr32" }
        Start-Process "${REGSVR32}" -ArgumentList "/s ${dll}" -Wait
    }
}
}

Function global:Fix-SystemPrintQueue
{
## Make sure the spooler service isn't already stopped
If ( (Get-Service -Name spooler).Status -ne "Stopped" )
{
    ## Forcefully stop the spooler service
    Stop-Service -Name spooler -Force

    ## Wait a few seconds to make sure it's stopped
    Start-Sleep -Seconds 5
}

## Check to make sure the spooler service has stopped
If ((Get-Service -Name spooler).Status -eq "Stopped")
{
    ## Delete all print jobs, including secure prints
    Remove-Item "${Env:WINDIR}\System32\spool\PRINTERS\*" -Recurse 

    ## Start the spooler service again
    Start-Service -Name spooler
}

## If the spooler service didn't stop on time, just return an error
Else { Write-Output "Could not clean ${Env:WINDIR}\System32\spool\PRINTERS\* because spooler service is running." }
}

Function global:Fix-WindowsUpdate
{
param([switch]$WSUS)

## Delete any existing folder from a previous execution of this script
If ( Test-Path "${Env:WinDir}\SoftwareDistribution.old" ) { Remove-Item "${Env:WinDir}\SoftwareDistribution.old" -Recurse -Force }

## Stop Background Intelligent Transfer Services and Windows Update
Stop-Service BITS
Stop-Service wuauserv

## Rename the SoftwareDistribution folder, forcing Windows Update to recreate all metrics and redownload all updates
Rename-Item -Path "${Env:WinDir}\SoftwareDistribution" -NewName "${Env:WinDir}\SoftwareDistribution.old" -Force

## Start Windows Update and Background Intelligent Transfer Services
Start-Service wuauserv
Start-Service BITS

## Delete SoftwareDistribution.old from this execution of this script
If ( Test-Path "${Env:WinDir}\SoftwareDistribution.old" ) { Remove-Item "${Env:WinDir}\SoftwareDistribution.old" -Recurse -Force }

## If using WSUS, reset authorization with server and detect new updates
If ( $WSUS ) { Start-Process "${Env:WinDir}\System32\wuauctl.exe" -ArgumentList "/resetauthorization /detectnow" }
}