I was trying to install Exchange Server 2007 SP3 Management Tools on a Windows 7 PC. During the installation I received the following error:
A reboot from a previous installation is pending. Please restart the system and rerun setup.
I resolved this error by deleting the the REG_MULTI_SZ value PendingFileRenameOperations from HKLM\SYSTEM\CurrentControlSet\Control\Session Manager\PendingFileRenameOperations