Googling around tells me that good old "deltree" no longer exists, but I would have assumed PowerShell would have some equivalent. If you do such a thing as administrator, won't you expect serious damage?
If the Linux layer allows deleting and replacing in-use files, that's pretty cool and a welcome feature.
If this is just a substitute for deltree I'm not sure I get the point.
An exception to this is memory mapped files as they are not allowed to be deleted that way. Executables are executed in Windows by memory-mapping them; so runnning programs are hard to delete.
- You can't delete the parent directory
- You can't create a new file with the same name
... which makes that flag quite useless.