I was pulling around 150 GB of files from a LAMP server to a Windows 7 pc with Cygwin. All went as it should and the only thing that was unusual was a file that was not deleted by rsync. The file is 0 bytes and it is called .62030.jpg.3bqiFX and in the same folder there is a file called 62030.jpg and this file's transfer is done (good, 100%, as it should).

On Windows 7 the file belongs to the following Group / User:

S-1-5-21-3xxx72xxx0-20xxx95755-103xxx7883-1001 (some number replaced with x's, I am not sure if I can publish this or not, security-wise)

When I try to paste it to disk C (from disk D), make a copy of it, I get the following results:

File Access Denied - You'll need to provide administrator permission to copy this file.

I am now on Windows 10 Pro (I upgraded today) and when I click Continue with that shield icon (this looks like I am pressing it as an administrator of the system or something like that, I get that:

You need permission form S-1-5-21-3xxx72xxx0-20xxx95755-103xxx7883-1001 (I replaced some numbers with the x's, I am not sure if this is something I can publish or not) to make changes to this file.

So basically I am not able to copy it or delete it but I can figure this out (as a Windows matter). My question here would be why it was not delete and what can be a reason for something like this?

I was transferring a total of over 2.5 million files in this proces and this is the only file like that in addition to what should be there in "normal circumstances". So basically why could this happen, what could have caused it, what is the reason for this and so on?

Thanks.

try search windows how to change permissions. they got that permissions/ownership on their files too.

The weird file is probably the rsync temp file for the last file transfered. It sounds like a minor bug. Rsync might not write 100% compatible file permissions to Windows. Cygwin allows Linux programs to run in Windows, but it doesn't necessarily make the programs 100% compatible.