[ros-diffs] [fireball] 37272: - Revert 25073 (vfatfs part). CcCopyRead is guaranteed (see WDK) to succeed if Wait parameter is TRUE, and the only case of failure is when Wait is FALSE meaning there is a need in additional processing time, hence returning of STATUS_PENDING. This fixes the "unable to read system hive" problem when booting Windows 2003 with this driver. See issue #1855 for more details.