Edited Feature: Check for pending reboots at top of the script [20837]

Before beginning an installation, it would be helpful if the script detects if any pending reboots are required that may cause the prerequisites installer/hotfixes/sharepoint installer to fail. It should check that all three of the registry keys below are empty of children - if any children exist, a reboot is needed:

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Component Based Servicing\RebootPending

HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Session Manager\FileRenameOperations

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\WindowsUpdate\Auto Update\RebootRequired