diff --git a/UpdateSequences.bat b/UpdateSequences.bat
index 61a8143..e58d238 100644
--- a/UpdateSequences.bat
+++ b/UpdateSequences.bat
@@ -8,4 +8,5 @@ set "rc=%errorlevel%"
 echo PowerShell exited with RC=%rc%
 echo @"_CURRENT\_UpdateSequences.log"
 echo Done.
+pause >nul
 exit /b %rc%
\ No newline at end of file
diff --git a/UpdateSequences.ps1 b/UpdateSequences.ps1
index 4df8706..83c8fc2 100644
--- a/UpdateSequences.ps1
+++ b/UpdateSequences.ps1
@@ -174,6 +174,15 @@ try {
             $srcFull = $parts[1]
             $seqName = $parts[2]
             $dstAbs = Join-Path $currentDir $seqName
+            if (Test-Path -LiteralPath $dstAbs) {
+                "[$(Get-Date -Format 'yyyy-MM-dd HH:mm:ss')]   WIPE: removing existing destination '$dstAbs'" | Add-Content -LiteralPath $logFile
+                try {
+                    Remove-Item -LiteralPath $dstAbs -Recurse -Force -ErrorAction Stop
+                }
+                catch {
+                    "[$(Get-Date -Format 'yyyy-MM-dd HH:mm:ss')]   WIPE ERROR: $($_.Exception.Message)" | Add-Content -LiteralPath $logFile
+                }
+            }
             if (-not (Test-Path -LiteralPath $dstAbs)) { New-Item -ItemType Directory -Path $dstAbs -Force | Out-Null }
             "[$(Get-Date -Format 'yyyy-MM-dd HH:mm:ss')] Mirror: '$srcFull' -> '$dstAbs'" | Add-Content -LiteralPath $logFile
             $robocopyArgs = @(