diff --git a/packaging/BuildMsix.ps1 b/packaging/BuildMsix.ps1
index f18484a..4497a72 100644
--- a/packaging/BuildMsix.ps1
+++ b/packaging/BuildMsix.ps1
@@ -152,7 +152,13 @@ if (-not (Test-Path $shellDll)) { throw "Shell DLL 산출물 없음: $shellDll"
 # ---- 3) Layout 디렉토리 ----
 Write-Host ''
 Write-Host '[3/5] Layout 디렉토리 구성'
-if (Test-Path $layoutDir) { Remove-Item $layoutDir -Recurse -Force }
+if (Test-Path $layoutDir) {
+    try { Remove-Item $layoutDir -Recurse -Force -ErrorAction Stop }
+    catch {
+        Start-Sleep -Milliseconds 600
+        Remove-Item $layoutDir -Recurse -Force -ErrorAction SilentlyContinue
+    }
+}
 New-Item -ItemType Directory -Path $layoutDir | Out-Null
 
 Copy-Item -Path (Join-Path $publishOut '*') -Destination $layoutDir -Recurse -Force
diff --git a/tools/Publish-Release.ps1 b/tools/Publish-Release.ps1
index 8693728..9ff2eaa 100644
--- a/tools/Publish-Release.ps1
+++ b/tools/Publish-Release.ps1
@@ -105,6 +105,10 @@ $publishDir = Join-Path $RootDir "publish"
 $distDir = Join-Path $RootDir "packaging/dist"
 
 if (-not $DryRun) {
+    # 0. 실행 중인 인스턴스 중지 (파일 잠금 방지)
+    Stop-Process -Name "Everything2Everything" -Force -ErrorAction SilentlyContinue
+    Start-Sleep -Milliseconds 500
+
     # 1. Portable EXE Publish
     Write-Host "  - Portable 바이너리 빌드 (win-x64 Release)..." -ForegroundColor Gray
     dotnet publish (Join-Path $RootDir "src/Everything2Everything.App/Everything2Everything.App.csproj") `