If you see a dialog box with the message –File or folder copy error, Error not specified copying the WhatsApp folder from your phone to your PC, this article will show you how to fix the problem. This error message may occur when copying files or folders from the PC to the phone or SD card and vice versa.
File or folder copy error, Unspecified error
1] Convert file system
If you try to copy files from PC to SD card or phone memory and receive this error message, there is a high probability that the target disk is a FAT32 file system. FAT32 files cannot copy files/folders larger than 4 GB. Therefore, you must convert the file system to exFAT or NTFS. If you have an SD card, it is possible – but you may not be able to do so with the phone’s memory. So insert the SD card, open This PC, right click on the SD card, select Format. Then select exFAT or NTFS from the File System drop-down menu and click the Start button .