diff --git a/backend/managers/gameManager.js b/backend/managers/gameManager.js
index 9f905b7..139008d 100644
--- a/backend/managers/gameManager.js
+++ b/backend/managers/gameManager.js
@@ -300,6 +300,16 @@ async function applyPWR(pwrFile, progressCallback, gameDir = GAME_DIR, toolsDir
     fs.rmSync(stagingDir, { recursive: true, force: true });
   }
 
+  // Delete PWR file from cache after successful installation
+  try {
+    if (fs.existsSync(pwrFile)) {
+      fs.unlinkSync(pwrFile);
+      console.log('[Butler] PWR file deleted from cache after successful installation:', pwrFile);
+    }
+  } catch (delErr) {
+    console.warn('[Butler] Failed to delete PWR file from cache:', delErr.message);
+  }
+
   if (progressCallback) {
     progressCallback('Installation complete', null, null, null, null);
   }
@@ -352,7 +362,15 @@ async function updateGameFiles(newVersion, progressCallback, gameDir = GAME_DIR,
     }
 
     await applyPWR(pwrFile, progressCallback, tempUpdateDir, toolsDir, branch, cacheDir);
-
+    // Delete PWR file from cache after successful update
+    try {
+      if (fs.existsSync(pwrFile)) {
+        fs.unlinkSync(pwrFile);
+        console.log('[UpdateGameFiles] PWR file deleted from cache after successful update:', pwrFile);
+      }
+    } catch (delErr) {
+      console.warn('[UpdateGameFiles] Failed to delete PWR file from cache:', delErr.message);
+    }
     if (progressCallback) {
       progressCallback('Replacing game files...', 80, null, null, null);
     }