Aqui está a correção
@echo off
for /f "delims=" %%a in ('wmic OS Get localdatetime ^| find "."') do set dt=%%a
set datestamp=%dt:~0,8%
set timestamp=%dt:~8,6%
set YYYY=%dt:~0,4%
set MM=%dt:~4,2%
set DD=%dt:~6,2%
set HH=%dt:~8,2%
set Min=%dt:~10,2%
set Sec=%dt:~12,2%
set stamp=Backup %DD%.%MM%.%YYYY% %HH%-%min%-%Sec%
set direc="f:\main accounts management\sagecompaniesbackup\%stamp%"
md %direc%
::Removed Double Quotes
set fold=%direc%
::Added Wildcard to fix invalid params
XCOPY "e:\SageCompanies\*" %fold% /c/e/k/y