Copying, moving, renaming, and deleting are far and away the most heavily used features within Windows Explorer, representing 50% of total command usage (based on Windows 7 telemetry data). For Windows 8, we want to make sure that using these core file management commands, which we collectively refer to as “copy jobs,” is a great experience.
We know from telemetry data (which is based on hundreds of millions of individuals opting in to provide anonymous data about product usage), that although 50% of these jobs take less than 10 seconds to complete, many people are also doing much larger jobs, 20% of which take more than 2 minutes to complete. Prior versions of Windows Explorer can handle these kinds of jobs, but Explorer isn't optimized for high-volume jobs or for executing multiple copy jobs concurrently.
Usability studies confirm what most of us know—there are some pretty cluttered and confusing parts of the Windows 7 copy experience. This is particularly true when people need to deal with files and folders that have the same file names, in what we call file name collisions. Lastly, our telemetry shows that 5.61% of copy jobs fail to complete for a variety of different reasons ranging from network interruptions to people just canceling the operation.
