Don't fall into the all-too-common trap of conflating "I don't know why" with "there's no reason," and especially if you lack relevant experience that would otherwise have proven insightful. Of course tere's a reason -- are reasons-- for it. At...
Solution for Windows (100% certainty):
A security feature built into Windows (NTFS) adds an additional attribute to track files' sources, e.g. if you download something off the internet it will be 'invisibly' tagged as such... and this attribute...
Solution for Windows (100% certainty):
A previous commenter was on the right track -- basically, the issue is caused by a security feature built into Windows (NTFS), in which files carry additional attributes to track their sources, e.g. if you...