hi,
Search for the value PendingFileRenameOperations in
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Session Manager
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet001\Control\Session Manager
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet002\Control\Session Manager
- if found backup the key and remove the value, try to restart the installation
Search for the key RebootRequired
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\WindowsUpdate\Auto Update\
- if found backup the key and remove it
Search for PendingFileRenameOperations in
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet001\Control\BackupRestore\KeysNotToRestore
If found delete - afterwarfs installation proceded. Upgrade successfull.
Note: If the value PendingFileRenameOperations cannot be found at all - alternative solution would be to run Cleanwipe on the machine and afterwards proceed with new SEPM installation
Check this
SEPM Upgrade fails with the message "Pending system changes that require a reboot have been detected"
http://www.symantec.com/business/support/index?page=content&id=TECH180855