<#
Author: Gabe Kerntke
Date: 06/19/2025

.Synopsis
Script cleans up disk space on the C: drive

.Reference

.Modified
2025-06-19 (GabeK) - Script created
#>

# Variables #
$App_Name = "Windows Software Probe"
$Size = Get-PSDrive C | Select-Object -ExpandProperty Free

# Functions #
Function Remove-Probe_Cache {
    #Set file age to older than 60 days
    $DatetoDelete = (Get-Date).AddDays(-60)

    #32 bit path for NablePatchCache
    $Path = "C:\Program Files\N-able Technologies\NablePatchCache"
    If ((Test-Path $Path) -eq $True) { 
        Get-ChildItem -Path $Path -File | Where-Object { $_.LastWriteTime -lt $DatetoDelete -and $_.Name -notlike "*CacheMetaData*" } | Remove-Item -Confirm:$false -Force 
    }

    #64 bit path for NablePatchCache
    $Path = "C:\Program Files (x86)\N-able Technologies\NablePatchCache"
    If ((Test-Path $Path) -eq $True) { 
        Get-ChildItem -Path $Path -File | Where-Object { $_.LastWriteTime -lt $DatetoDelete -and $_.Name -notlike "*CacheMetaData*" } | Remove-Item -Confirm:$false -Force 
    }

    #3rd party cache (UFS) - Recursive search for old files
    $Path = "C:\EPCache"
    If ((Test-Path $Path) -eq $True) { 
        Get-ChildItem -Path $Path -File -Recurse | Where-Object { $_.LastWriteTime -lt $DatetoDelete } | Remove-Item -Confirm:$false -Force 
    }
}

Function Remove-Agent_Cache {
    #Set File Age to older than 7 days
    $DatetoDelete = (Get-Date).AddDays(-7)

    #32 Bit path for 3rd Party downloads
    $Path = "C:\Program Files\N-able Technologies\PatchManagement\ThirdPartyPatch\Downloads"
    If ((Test-Path $Path) -eq $True) { 
        Get-ChildItem -Path $Path -File | Where-Object { $_.LastWriteTime -lt $DatetoDelete -and $_.Name -notlike "*.xml" } | Remove-Item -Confirm:$false -Force 
    }

    #64 Bit path for 3rd Party downloads
    $Path = "C:\Program Files (x86)\N-able Technologies\PatchManagement\ThirdPartyPatch\Downloads"
    If ((Test-Path $Path) -eq $True) { 
        Get-ChildItem -Path $Path -File | Where-Object { $_.LastWriteTime -lt $DatetoDelete -and $_.Name -notlike "*.xml" } | Remove-Item -Confirm:$false -Force 
    }

    #New path for patch cache
    $Path = "C:\ProgramData\MspPlatform\FileCacheServiceAgent\cache"
    If ((Test-Path $Path) -eq $True) { 
        Get-ChildItem -Path $Path -File | Where-Object { $_.LastWriteTime -lt $DatetoDelete -and $_.Name -notlike "*CacheMetaData*" } | Remove-Item -Confirm:$false -Force 
    }

    #Cleans out script cache
    $Path = "C:\Windows\NCentral\Cache" 
    If ((Test-Path $Path) -eq $True) { 
        Get-ChildItem -Path $Path -File | Where-Object { $_.LastWriteTime -lt $DatetoDelete -and $_.Name -notlike "*CacheMetaData*" } | Remove-Item -Confirm:$false -Force 
    }
}

Function Start-Disk_Cleanup {
    #Runs Disk Cleanup with all boxes checked and without user input
    CLEANMGR C:\ /VERYLOWDISK
    CLEANMGR C:\ /AUTOCLEAN
}

Function Remove-Windows_Updates_Cache {
    #Stops services related to Windows Updates
    Stop-Service wuauserv
    Stop-Service BITS
    Start-Sleep 30

    #Cleans out the Windows Updates patch cache folder
    Get-ChildItem "C:\Windows\SoftwareDistribution\Download\" | Remove-Item -Force -Recurse
    Start-Sleep 30

    #Starts the services
    Start-Service wuauserv
    Start-Service BITS
    Start-Sleep 15  
}

#Check free space after running script
Function Convert-Size {
    switch ($Size) {
        { $_ -gt 1TB } { ($Size / 1TB).ToString("n2") + " TB"; break }
        { $_ -gt 1GB } { ($Size / 1GB).ToString("n2") + " GB"; break }
        { $_ -gt 1MB } { ($Size / 1MB).ToString("n2") + " MB"; break }
        { $_ -gt 1KB } { ($Size / 1KB).ToString("n2") + " KB"; break }
        default { "$Size B" }
    }
}

# Script Start #

If ((Test-Path "C:\Temp\Script Cache") -eq $False) { New-Item -ItemType directory -Path "C:\Temp\Script Cache" }
try {
    Invoke-WebRequest -UseBasicParsing "https://scripts.gabesville.com/Gabesville/Powershell-Scripts/raw/branch/main/Functions%20Scripts/Functions.ps1" -outfile "C:\Temp\Script Cache\Functions.ps1"
    . "C:\Temp\Script Cache\Functions.ps1"
}
catch {
    #Use TLS 1.2 for communication
    [Net.ServicePointManager]::SecurityProtocol = [Net.SecurityProtocolType]::Tls12
    Invoke-WebRequest -UseBasicParsing "https://scripts.gabesville.com/Gabesville/Powershell-Scripts/raw/branch/main/Functions%20Scripts/Functions.ps1" -outfile "C:\Temp\Script Cache\Functions.ps1"
    . "C:\Temp\Script Cache\Functions.ps1"
}

#Calculate starting free space
[INT64]$StartFreeSpace = (Get-WmiObject -Class Win32_logicaldisk | Where-Object { $_.DeviceID -eq 'C:' }).Freespace

#Check to see if program is installed
$Applist = Get-Software | Sort-Object -Descending

If ($Applist.DisplayName -like "*$App_Name*") { 
    Remove-Probe_Cache
}
Remove-Agent_Cache
Start-Disk_Cleanup
Remove-Windows_Updates_Cache

#Calculate space freed up and report out
[INT64]$EndFreeSpace = (Get-WmiObject -Class Win32_logicaldisk | Where { $_.DeviceID -eq 'C:' }).Freespace
$SpaceFreed = "{0:N2}" -f (($EndFreeSpace - $StartFreeSpace) / 1GB)
Write-Output "Space freed up: $($SpaceFreed)GB"
$FreeAfter = Convert-Size
Write-Host "$FreeAfter space free on C drive"
# End Script #