ATI 9.0 Home Dedicated logic disc for all images created by ATI. All known users have read-only access rights for this disc. For the duration of ATI imaging process "change" access rights are granted for this disc to user-defined administrator. Read-only rights retrieved after imaging completed. All those operations are made using setACL application. Called from batch file invoked by pre-processing command. However setACL returns errors ERROR: Reading the SD from <\\?\UNC\KRZYDU-PC01\Z$> failed with: The data area passed to a system call is too small. SetACL error message: A privilege could not be enabled Does setACL have sufficient access rights to complete its job ? I guess, scheduled tasks run from SYSTEM account. At least the Task Manager is claiming that. setACL experts say SE_SECURITY_NAME must be enabled for process executing this operation. How can I ensure setACL has sufficient rights when running in context of scheduled task ?