diff --git a/app/ipc/export_handlers.ts b/app/ipc/export_handlers.ts
index bfb6a03d..aec762f6 100644
--- a/app/ipc/export_handlers.ts
+++ b/app/ipc/export_handlers.ts
@@ -3,6 +3,8 @@ import { baseDir, downloadsDir } from "../utils/constants";
 import fs from "fs";
 import path from "path";
 import { showFileDownloadedDialog } from "../utils/dialog";
+import { sanitizeFilename } from "../utils";
+
 
 export function setupExportHandlers() {
   ipcMain.handle("file-downloaded", async (_, filePath: string): Promise<IPCStatus> => {
@@ -42,7 +44,8 @@ export function setupExportHandlers() {
           margins: { top: 0, right: 0, bottom: 0, left: 0 }
         });
         browser.close();
-        const destinationPath = path.join(downloadsDir, `${title}.pdf`);
+        const sanitizedTitle = sanitizeFilename(title);
+        const destinationPath = path.join(downloadsDir, `${sanitizedTitle}.pdf`);
         await fs.promises.writeFile(destinationPath, pdfBuffer);
 
         const success = await showFileDownloadedDialog(destinationPath);
diff --git a/app/utils/constants.ts b/app/utils/constants.ts
index 0ee28bbc..e1781244 100644
--- a/app/utils/constants.ts
+++ b/app/utils/constants.ts
@@ -1,7 +1,7 @@
 import { app } from "electron"
 import path from "path"
 
-export const localhost = "http://0.0.0.0"
+export const localhost = "http://127.0.0.1"
 
 
 export const isDev = !app.isPackaged;
diff --git a/app/utils/index.ts b/app/utils/index.ts
index 568db0bd..eb9105c7 100644
--- a/app/utils/index.ts
+++ b/app/utils/index.ts
@@ -77,3 +77,7 @@ export async function findUnusedPorts(startPort: number = 40000, count: number =
   return ports;
 }
 
+
+export function sanitizeFilename(filename: string): string {
+  return filename.replace(/[\\/:*?"<>|]/g, '_');
+}
\ No newline at end of file
diff --git a/package.json b/package.json
index 0613c7ab..a56d2358 100644
--- a/package.json
+++ b/package.json
@@ -10,7 +10,7 @@
   },
   "scripts": {
     "dev": "rm -rf app_dist && tsc && electron .",
-    "setup:env": "npm install && cd servers/fastapi && poetry env remove --all && poetry install && pip remove hf_xet && cd ../../servers/nextjs && npm install",
+    "setup:env": "npm install && cd servers/fastapi && poetry env remove --all && poetry install && .venv/bin/pip uninstall -y hf_xet && cd ../../servers/nextjs && npm install",
     "install:pyinstaller": "cd servers/fastapi && .venv/bin/pip install pyinstaller",
     "build:ts": "rm -rf app_dist && tsc",
     "build:css": "tailwindcss -i ./resources/ui/assets/css/tailwind.import.css -o ./resources/ui/assets/css/tailwind.css --watch",
diff --git a/servers/fastapi/api/routers/presentation/handlers/export_as_pptx.py b/servers/fastapi/api/routers/presentation/handlers/export_as_pptx.py
index 78986ff2..fe9daa9b 100644
--- a/servers/fastapi/api/routers/presentation/handlers/export_as_pptx.py
+++ b/servers/fastapi/api/routers/presentation/handlers/export_as_pptx.py
@@ -11,7 +11,7 @@ from api.routers.presentation.models import (
 from api.services.logging import LoggingService
 from api.services.instances import temp_file_service
 from api.sql_models import PresentationSqlModel
-from api.utils import get_presentation_dir
+from api.utils import get_presentation_dir, sanitize_filename
 from ppt_generator.pptx_presentation_creator import PptxPresentationCreator
 from api.services.database import get_sql_session
 
@@ -44,7 +44,7 @@ class ExportAsPptxHandler(FetchPresentationAssetsMixin):
 
         ppt_path = os.path.join(
             self.presentation_dir,
-            f"""{presentation.title.replace('/', '_').replace(' ', '_').replace('"', "'")}.pptx""",
+            sanitize_filename(f"{presentation.title}.pptx")
         )
         ppt_creator = PptxPresentationCreator(self.data.pptx_model, self.temp_dir)
         ppt_creator.create_ppt()
diff --git a/servers/fastapi/api/utils.py b/servers/fastapi/api/utils.py
index cd68ab62..5ec5f630 100644
--- a/servers/fastapi/api/utils.py
+++ b/servers/fastapi/api/utils.py
@@ -3,6 +3,7 @@ import json
 import os
 import sys
 import traceback
+import re
 from typing import List, Optional
 
 import aiohttp
@@ -139,3 +140,18 @@ async def handle_errors(
             extra=log_metadata.model_dump(),
         )
         raise HTTPException(400, "Something went wrong while processing your request.")
+
+
+def sanitize_filename(filename: str) -> str:
+    name, ext = os.path.splitext(filename)
+    sanitized = re.sub(r'[\\/:*?"<>|]', '_', name)
+    sanitized = re.sub(r'[\s_]+', '_', sanitized)
+    sanitized = sanitized.strip(' .')
+
+    if not sanitized:
+        sanitized = 'untitled'
+    
+    if len(sanitized) > 200:
+        sanitized = sanitized[:200]
+    
+    return sanitized + ext
diff --git a/servers/fastapi/server.py b/servers/fastapi/server.py
index 40db9df9..3935ca6e 100644
--- a/servers/fastapi/server.py
+++ b/servers/fastapi/server.py
@@ -14,4 +14,4 @@ if __name__ == "__main__":
     )
     args = parser.parse_args()
 
-    uvicorn.run("api.main:app", host="0.0.0.0", port=args.port, log_level="info")
+    uvicorn.run("api.main:app", host="127.0.0.1", port=args.port, log_level="info")
diff --git a/servers/fastapi/server_autoreload.py b/servers/fastapi/server_autoreload.py
index 4d5c00de..b0c4e49b 100644
--- a/servers/fastapi/server_autoreload.py
+++ b/servers/fastapi/server_autoreload.py
@@ -10,5 +10,5 @@ if __name__ == "__main__":
     args = parser.parse_args()
 
     uvicorn.run(
-        "api.main:app", host="0.0.0.0", port=args.port, log_level="info", reload=True
+        "api.main:app", host="127.0.0.1", port=args.port, log_level="info", reload=True
     )
diff --git a/servers/fastapi/server_test.py b/servers/fastapi/server_test.py
index 4b547a5c..f2446056 100644
--- a/servers/fastapi/server_test.py
+++ b/servers/fastapi/server_test.py
@@ -5,5 +5,5 @@ load_dotenv()
 
 if __name__ == "__main__":
     uvicorn.run(
-        "api.main:app", host="0.0.0.0", port=8000, log_level="info", reload=True
+        "api.main:app", host="127.0.0.1", port=8000, log_level="info", reload=True
     )