Normally, there are 3 notable things that are unique about Windows files: * It's standard for "security" software to be installed and hook into the filesystem.

Normally, there are 3 notable things that are unique about Windows files: * It's standard for "security" software to be installed and hook into the filesystem. Normally this only means giving up on several orders of magnitude of performance, but as this incident reminds us: security software is indistinguishable from malware. * The system has a very long history of relying on exclusive access to files. This is one of the major reasons for Windows needing to restart so many times, but also leads to a lot of programs being badly written, among other things making false assumptions regarding atomicity in the presence of system failure. * There's a difference between text files and binary files, and thus a whole pain of adding/removing \r before \n (which among other things means byte counts are wrong and checksums mismatching).