Some antivirus (Avast, Bitdefender, Windows Defender) blocks 3uTools from accessing certain folders.
. He jumped into the Windows Security settings and temporarily toggled off the "Real-time protection." Sometimes, the firewall mistook a data transfer for a digital break-in. Finally, he swapped the frayed lightning cable for a brand-new MFi-certified one 3utools Failed To Access Folder Error Code 13