Error Code 19: The media is write protected. (CopyFileEx)

[PeteM]

Hi,

I've scanned through the forum index for any posts regarding Error Code 19 without success.

I'm using FreeFileSync 6.13 Build Jan 22 2015 - Unicode x64 running on Windows 10.

I'm syncing between 2 folders; from C: drive (on PC) to E: drive (an external HDD via USB). There are almost 6,000 files across about 1,000 folders on C:.

On a small number of files; about 10, I get the following message (example of 1 specific file), Error Code is the same:
------------------------
X Cannot copy file
"C:Users\jilli_000\Documents\Business\InPayTech\ASX\Escrow Periods.pdf" to
"E:\Business\InPayTech\ASX\Escrow\ASX Escrow Periods.pdf.ffs_tmp".

Error Code 19: The media is write protected. (CopyFileEx)
------------------------
I can confirm the files are not write protected.

Any help would be appreciated!!