PowerShell script to add a custom context menu item to windows Desktop, that uses BgInfo.exe from SysInternals to display PC info on desktop.

Set-BgInfo.ps1

<#/
.SYNOPSIS
    PowerShell script to add a custom context menu item to windows Desktop,
    that uses BgInfo.exe from sysinternals to display PC info on desktop. 

.DESCRIPTION
    This script sets up BGInfo by downloading it if necessary, creating a batch file to run it, 
    and adding a context menu item to the desktop background for easy access.

                                                        - dpk, 09/2024
#>

# Combined BGInfo Setup Script
Write-Host "This script adds a custom context menu item to Windows Desktop that uses BgInfo.exe from sysinternals to display PC info on desktop."

# Define the path for the hidden .bginfo directory in the user's home directory
$BGInfoDir = Join-Path -Path $env:USERPROFILE -ChildPath ".bginfo"
$BatchFilePath = Join-Path -Path $BGInfoDir -ChildPath "update_bginfo.bat"
$regPath = "HKCU:\Software\Classes\DesktopBackground\Shell\UpdateSystemInfo"


#
#*
#**
#**************************
# Setup Function
#**************************
function Setup {
    # 1. Ask user to confirm or provide BGInfo executable path
    if (-not $BGInfoPath -or -not (Test-Path $BGInfoPath)) {
        Write-Host "No BGInfo executable path was provided or found."
        $BGInfoPath = Read-Host "Please provide the path to BGInfo executable or leave empty to download automatically"
        if (-not $BGInfoPath) {
            Write-Host "No path provided. BGInfo will be downloaded from the internet."
        }
    } else {
        Write-Host "BGInfo executable path is already set to: $BGInfoPath"
        $confirm = Read-Host "Do you want to use this path? (y/Y to confirm, any other key to change)"
        if ($confirm -ne "y" -and $confirm -ne "Y") {
            $BGInfoPath = Read-Host "Please provide the new path to BGInfo executable or leave empty to download automatically"
            if (-not $BGInfoPath) {
                Write-Host "No path provided. BGInfo will be downloaded from the internet."
            }
        }
    }

    # 2. Ask user to confirm or provide BGInfo configuration file path
    if (-not $BGInfoConfigPath -or -not (Test-Path $BGInfoConfigPath)) {
        Write-Host "No BGInfo configuration file path was provided."
        $BGInfoConfigPath = Read-Host "Please provide the path to a custom BGInfo configuration file, or leave empty to use the default settings"
        if (-not $BGInfoConfigPath) {
            Write-Host "No configuration file provided. Default BGInfo settings will be used."
        }
    } else {
        Write-Host "BGInfo configuration path is already set to: $BGInfoConfigPath"
        $confirmConfig = Read-Host "Do you want to use this configuration file? (y/Y to confirm, any other key to change)"
        if ($confirmConfig -ne "y" -and $confirmConfig -ne "Y") {
            $BGInfoConfigPath = Read-Host "Please provide the new path to a custom BGInfo configuration file, or leave empty to use default settings"
            if (-not $BGInfoConfigPath) {
                Write-Host "No configuration file provided. Default BGInfo settings will be used."
            }
        }
    }

    # 3. Create a hidden .bginfo directory for the batch file
    if (-not (Test-Path $BGInfoDir)) {
        $null = New-Item -Path $BGInfoDir -ItemType Directory
        $attr = [System.IO.FileAttributes]::Hidden
        [System.IO.File]::SetAttributes($BGInfoDir, $attr)
    }

    # 4.  Download BGInfo if path is not provided
    if (-not $BGInfoPath -or -not (Test-Path $BGInfoPath)) {
        $TempPath = Join-Path -Path $env:TEMP -ChildPath "BGInfo.zip"
        $DownloadUrl = "https://download.sysinternals.com/files/BGInfo.zip"
        Invoke-WebRequest -Uri $DownloadUrl -OutFile $TempPath
        $ExtractPath = Join-Path -Path $env:TEMP -ChildPath "BGInfoExtract"
        Expand-Archive -Path $TempPath -DestinationPath $ExtractPath -Force
        $ExtractedExePath = Join-Path -Path $ExtractPath -ChildPath "Bginfo64.exe"
        $BGInfoPath = Join-Path -Path $BGInfoDir -ChildPath "Bginfo64.exe"
        Copy-Item -Path $ExtractedExePath -Destination $BGInfoPath -Force
        Remove-Item -Path $TempPath -Force
        Remove-Item -Path $ExtractPath -Recurse -Force
    }

    # 5. Create the batch file to run BGInfo
    $BatchFileContent = "@echo off`n"
    if ($BGInfoConfigPath -and (Test-Path $BGInfoConfigPath)) {
        $BatchFileContent += "`"$BGInfoPath`" `"$BGInfoConfigPath`" /timer:0 /nolicprompt /silent"
    } else {
        $BatchFileContent += "`"$BGInfoPath`" /timer:0 /nolicprompt /silent"
    }
    Set-Content -Path $BatchFilePath -Value $BatchFileContent

    # 6. Add registry entries for context menu
    $commandRegPath = "$regPath\command"
    if (-not (Test-Path $regPath)) {
        $null = New-Item -Path $regPath -Force
        New-ItemProperty -Path $regPath -Name "MUIVerb" -Value "Update System Info" -PropertyType String -Force | Out-Null
        New-ItemProperty -Path $regPath -Name "Icon" -Value $BGInfoPath -PropertyType String -Force | Out-Null
    }

    if (-not (Test-Path $commandRegPath)) {
        $null = New-Item -Path $commandRegPath -Force
        New-ItemProperty -Path $commandRegPath -Name "(Default)" -Value "`"$BatchFilePath`"" -PropertyType String -Force | Out-Null
    }

    Write-Host "Context menu item created successfully. BGInfo setup complete."
}
# End of Setup function


#
#*
#**
#**************************
# Uninstall Function
#**************************
function Uninstall {
    Write-Host "Removing changes made by the BGInfo setup script."

    # 1. Define the path for the hidden .bginfo directory in the user's home directory
    $BGInfoDir = Join-Path -Path $env:USERPROFILE -ChildPath ".bginfo"
    $BatchFilePath = Join-Path -Path $BGInfoDir -ChildPath "update_bginfo.bat"
    $BGInfoPath = Join-Path -Path $BGInfoDir -ChildPath "Bginfo64.exe"
    $BGInfoConfigPath = Join-Path -Path $BGInfoDir -ChildPath "BginfoConfig.bgi" # Assuming the config file is named like this
    $regPath = "HKCU:\Software\Classes\DesktopBackground\Shell\UpdateSystemInfo"

    # 2. Remove the registry entries
    if (Test-Path $regPath) {
        Remove-Item -Path $regPath -Recurse -Force
        Write-Host "Registry entries removed successfully."
    } else {
        Write-Host "No registry entries found to remove."
    }

    # 3. Remove the batch file if it exists
    if (Test-Path $BatchFilePath) {
        Remove-Item -Path $BatchFilePath -Force
        Write-Host "Batch file removed successfully."
    } else {
        Write-Host "No batch file found to remove."
    }

    # 4. Ask user if they want to remove the BGInfo executable and configuration file
    $removeBGInfo = Read-Host "Do you want to remove the BGInfo executable and configuration file? (y/Y to remove, any other key to leave them)"
    if ($removeBGInfo -eq "y" -or $removeBGInfo -eq "Y") {
        # Remove BGInfo executable if it exists
        if (Test-Path $BGInfoPath) {
            Remove-Item -Path $BGInfoPath -Force
            Write-Host "BGInfo executable removed successfully."
        } else {
            Write-Host "No BGInfo executable found to remove."
        }

        # Remove BGInfo configuration file if it exists
        if (Test-Path $BGInfoConfigPath) {
            Remove-Item -Path $BGInfoConfigPath -Force
            Write-Host "BGInfo configuration file removed successfully."
        } else {
            Write-Host "No BGInfo configuration file found to remove."
        }
    } else {
        Write-Host "BGInfo executable and configuration file left as is."
    }

    # 5. Remove the .bginfo directory if it is empty
    if (Test-Path $BGInfoDir) {
        if ((Get-ChildItem -Path $BGInfoDir | Measure-Object).Count -eq 0) {
            Remove-Item -Path $BGInfoDir -Force
            Write-Host ".bginfo directory removed successfully."
        } else {
            Write-Host ".bginfo directory is not empty. Manual review recommended."
        }
    } else {
        # Display full path of .bginfo for user to review
        Write-Host "No .bginfo directory found to remove. Path: $BGInfoDir"
    }
}
# End of Uninstall function

#******************************************
# Check for previous installation and do fresh installation
$BGInfoExists = Test-Path $BGInfoDir
$RegPathExists = Test-Path $regPath

if ($BGInfoExists -or $RegPathExists) {
    Write-Host "Previous installation of this script detected."
    $userChoice = Read-Host "How do you want to proceed? (press u/U to uninstall, default: r/R for reinstall)"
    
    if ($userChoice -eq "u" -or $userChoice -eq "U") {
        Uninstall
        exit
    }
}

$userInstallChoice = Read-Host "Please press y/Y to install? (default: any other key to exit)"
if ($userInstallChoice -ne "y" -and $userInstallChoice -ne "Y") {
    Write-Host "Exiting script."
    exit
}
Setup