commit 16ad4bc2f21b248c25ba625af6b322a5425bb41d
Author: Petr Štěpán <petr@stepan.tech>
Date:   Tue Jul 21 15:01:44 2026 +0200

    Add script to find AD users based on UVHD file names

diff --git a/Get-RDSUsersFromUVHD.ps1 b/Get-RDSUsersFromUVHD.ps1
new file mode 100644
index 0000000..34d5504
--- /dev/null
+++ b/Get-RDSUsersFromUVHD.ps1
@@ -0,0 +1,114 @@
+<#
+.SYNOPSIS
+    Finds AD users based on UVHD (User Profile Disk) file names.
+
+.DESCRIPTION
+    Scans a folder of UVHD disks, extracts the SID from each file name
+    (format UVHD-S-1-5-21-*.vhdx), and looks up the matching user in AD.
+
+.PARAMETER UVHDPath
+    Path to the folder containing the UVHD files.
+
+.PARAMETER ExportCsv
+    Optional path to export the results to a CSV file.
+
+.EXAMPLE
+    .\Get-RDSUsersFromUVHD.ps1 -UVHDPath "\\fileserver\UPD$"
+
+.EXAMPLE
+    .\Get-RDSUsersFromUVHD.ps1 -UVHDPath "D:\UPD" -ExportCsv "C:\Temp\uvhd_users.csv"
+
+.NOTES
+    Author:   Petr Štěpán
+    Created:  2026-07-21
+    Version:  1.0.0
+    Changelog:
+        1.0.0 - Initial version
+#>
+
+#Requires -Modules ActiveDirectory
+[CmdletBinding(SupportsShouldProcess = $true, ConfirmImpact = 'Low')]
+param (
+    [Parameter(Mandatory = $true)]
+    [ValidateNotNullOrEmpty()]
+    [string]
+    $UVHDPath,
+
+    [Parameter(Mandatory = $false)]
+    [ValidateNotNullOrEmpty()]
+    [string]
+    $ExportCsv
+)
+
+Set-StrictMode -Version Latest
+$ErrorActionPreference = 'Stop'
+
+Write-Verbose "Loading UVHD files from '$UVHDPath'..."
+try {
+    $vhdxFiles = @(Get-ChildItem -Path $UVHDPath -Filter "UVHD-S-1-5-21-*.vhdx" -File -ErrorAction Stop)
+}
+catch {
+    Write-Error "Failed to read folder '$UVHDPath': $_"
+    exit 1
+}
+
+if ($vhdxFiles.Count -eq 0) {
+    Write-Warning "No UVHD files were found in folder '$UVHDPath'."
+    exit 0
+}
+
+Write-Host "Found $($vhdxFiles.Count) UVHD files. Looking up users in AD...`n" -ForegroundColor Cyan
+
+$results = @(foreach ($file in $vhdxFiles) {
+    # Extract the SID from the file name: UVHD-S-1-5-21-xxx-xxx-xxx-xxxx.vhdx
+    $sidString = $file.BaseName -replace '^UVHD-', ''
+
+    $adUser = $null
+    $status = $null
+
+    try {
+        $sid    = [System.Security.Principal.SecurityIdentifier]::new($sidString)
+        $adUser = Get-ADUser -Identity $sid -Properties DisplayName, EmailAddress, Enabled, DistinguishedName -ErrorAction Stop
+        $status = "OK"
+    }
+    catch [Microsoft.ActiveDirectory.Management.ADIdentityNotFoundException] {
+        $status = "User not found in AD"
+    }
+    catch {
+        $status = "Error: $($_.Exception.Message)"
+    }
+
+    [PSCustomObject]@{
+        File              = $file.Name
+        SID               = $sidString
+        SamAccountName    = $adUser.SamAccountName
+        DisplayName       = $adUser.DisplayName
+        Email             = $adUser.EmailAddress
+        Enabled           = $adUser.Enabled
+        DistinguishedName = $adUser.DistinguishedName
+        SizeMB            = [math]::Round($file.Length / 1MB, 0)
+        LastModified      = $file.LastWriteTime
+        Status            = $status
+    }
+})
+
+# Console output
+$results | Format-Table -AutoSize File, SamAccountName, DisplayName, Enabled, SizeMB, LastModified, Status
+
+# Summary
+$ok      = @($results | Where-Object { $_.Status -eq "OK" }).Count
+$missing = @($results | Where-Object { $_.Status -ne "OK" }).Count
+
+Write-Host "`nSummary:" -ForegroundColor Cyan
+Write-Host "  Found in AD : $ok" -ForegroundColor Green
+Write-Host "  Not found   : $missing" -ForegroundColor $(if ($missing -gt 0) { "Yellow" } else { "Green" })
+
+# Optional CSV export
+if ($ExportCsv) {
+    if ($PSCmdlet.ShouldProcess($ExportCsv, "Export $($results.Count) records to CSV")) {
+        $results | Export-Csv -Path $ExportCsv -NoTypeInformation -Encoding UTF8
+        Write-Host "`nResults exported to: $ExportCsv" -ForegroundColor Cyan
+    }
+}
+
+exit 0