How to overwrite existing files in batch?
Add /Y to the command line
You can use :
copy /b/v/y
See SS64 on COPY.
Add /y to the command line of xcopy:
Example:
xcopy /y c:\mmyinbox\test.doc C:\myoutbox
you need to simply add /Y
xcopy /s c:\mmyinbox\test.doc C:\myoutbox /Y
and if you're using path with spaces, try this
xcopy /s "c:\mmyinbox\test.doc" "C:\myoutbox" /Y