At work I’ve come across the strange problem whereby we receive zipped work from publishers and using the Windows 7 ‘extract all’ feature in the folder browser unzips the files but encrypts them (green file names) to be accessible to only the user that unzipped them.
I’ve never seen this behaviour before and can’t seem to recreate it consistently, some files we receive do this and others appear fine, no encryption.
Using 7zip the files unzip correctly with no encryption.
Has anyone any idea why this might happen? Reading the Microsoft documentation suggests that if the files were encrypted by the owner then zipped that the encryption should be removed when decrypted.
I’ve never seen this behaviour before and can’t seem to recreate it consistently, some files we receive do this and others appear fine, no encryption.
Using 7zip the files unzip correctly with no encryption.
Has anyone any idea why this might happen? Reading the Microsoft documentation suggests that if the files were encrypted by the owner then zipped that the encryption should be removed when decrypted.