Close completely (ensure it is not running in your system tray). Right-click the 3uTools icon on your desktop. Select Run as administrator .
Follow these methods in order to restore full functionality to 3uTools. 1. Run 3uTools as an Administrator
If this solves the problem permanently, you can set 3uTools to always run as administrator:
: Right-click the 3uTools desktop icon and select Run as Administrator . This grants the application necessary permissions to access restricted system folders. 3utools Failed To Access Folder Error Code 13
Temporarily turn off your computer's and Windows Defender/Firewall . These programs can misidentify 3uTools’ attempts to access system folders as a security threat. Enter DFU Mode Manually
If you know which folder triggers the error (e.g., backup location):
3uTools lacks the necessary administrator rights to modify the targeted folder on your PC. Close completely (ensure it is not running in
While "Error Code 13" is often categorized as a hardware-related indicator, there are several software and connection-based fixes you should try before concluding your device has a physical defect. 1. Optimize Your USB Connection
If iTunes or iCloud services are running in the background, they may lock specific files (especially "Manifest.db" during backups).
Locate the paths for and Firmware Download Directory . Follow these methods in order to restore full
If permission changes fail, the directory itself may be corrupt or locked by system policies. The solution is to bypass the folder entirely.
You may also need to allow 3uTools access to "Files and Folders" and "Removable Volumes" in the same Privacy & Security menu.
Add the 3uTools installation folder (typically C:\Program Files\3uTools or C:\Program Files (x86)\3uTools ) to the exclusion list.