for %x in ("c:tmp***") do pushd %x & ren "Application Data" a & popd

for /d %x in ("c:tmp***") do pushd %x & attrib –h %x & ren "Application Data" a & popd

for /d %%d in ("c:tmp*") do (
pushd %%d
attrib -h "%%d"
if "%%d" == "Application Data" ren "%%d" a
popd
)