Try the operation again. This often bypasses folder access restrictions immediately. 2. Check for File Locks (Close iTunes/Antivirus)
Summary
If you don't want to turn it off completely, click "Allow an app through Controlled folder access" and add 3uTools.exe and iTunes.exe manually. However, for flashing firmware, turning it off entirely is recommended. 3utools failed to access folder error code 13 new
Ensure both your PC and your iDevice have sufficient space. Insufficient "System Space" (less than 50MB) can cause operations to fail mid-process. Try the operation again
Right-click the folder 3uTools is trying to access (e.g., your Backup or Firmware folder) and select Properties tab, click , and ensure your user account has Full Control Temporarily Disable Anti-Virus Check for File Locks (Close iTunes/Antivirus) Summary If
In , "Error Code 13" or "Failed to access folder" typically indicates that the software is being denied permission to write or read data from its designated directories . This is often due to system security settings, a corrupted driver, or a modified backup folder name. Quick Fixes for Error Code 13
