3utools Failed To Access Folder Error Code 13 __hot__

Feature Article: The Permission Barrier

Option B: Whitelist 3uTools (Recommended for security)

  1. Turn on Controlled Folder Access.
  2. Click Allow an app through Controlled Folder Access.
  3. Click Add an allowed app > Recently blocked apps – if 3uTools appears, select it.
  4. If not, click Browse all apps, navigate to C:\Program Files (x86)\3uTools\3uTools.exe, and add it.
  5. Restart 3uTools.

Solution B: Disable "Read-Only" Attribute

If the destination folder is marked as read-only, Windows will block write commands.

  1. Navigate to the folder where 3uTools stores backups or downloads.
    • Default Path: C:\Users\[Username]\Documents\3uTools or C:\Program Files (x86)\3uTools.
  2. Right-click the folder and select Properties.
  3. Under the "General" tab, ensure the Read-only box is unchecked.
  4. Click Apply -> OK.

5. Advanced: Check Windows System Integrity

If Error 13 persists system-wide:

5️⃣ Reinstall 3uTools (Clean Install)

Corrupted permissions inside the 3uTools directory can cause error 13.

  1. Uninstall 3uTools from Control Panel
  2. Delete remaining folders:
    • C:\Program Files (x86)\3uTools
    • %LocalAppData%\3uTools
  3. Restart PC
  4. Download latest version from 3u.com
  5. Right‑click installer → Run as administrator

Fix 4: Verify and Repair 3uTools Installation

If the installation itself is corrupted, permissions are not set correctly. Reinstalling is not enough – you need to purge old settings. 3utools Failed To Access Folder Error Code 13

Step-by-step clean reinstall:

  1. Uninstall 3uTools via Control Panel > Programs and Features.
  2. Manually delete leftover folders:
    • C:\Program Files (x86)\3uTools
    • C:\Users\YourUsername\AppData\Local\3uTools (hidden folder – type this into File Explorer address bar)
    • C:\Users\YourUsername\AppData\Roaming\3uTools
  3. Press Windows + R, type %temp%, and delete any 3uTools-related temporary files.
  4. Restart your PC. This releases file locks.
  5. Download the latest version of 3uTools from the official website (do not use third-party downloaders).
  6. Right-click the installer and choose Run as administrator.
  7. Install to the default location (C:\Program Files (x86)\3uTools).

After reinstallation, run 3uTools as administrator once before doing anything else. Feature Article: The Permission Barrier Option B: Whitelist


What is Error Code 13?

In the context of 3uTools and the Windows operating system, Error Code 13 is almost exclusively a Permissions Issue.

When 3uTools attempts to read or write to a specific directory (such as the default iPhone backup location), it acts as a bridge between your iOS device and your PC. Error Code 13 indicates that the Windows file system has denied 3uTools the necessary "read/write" privileges for that specific folder. Turn on Controlled Folder Access

Unlike a "File Not Found" error, which suggests the data is missing, Error Code 13 confirms the folder exists—you simply aren't allowed to touch it.