Hi There,
I have began upgrading our Exchange servers to Rollup 4 for Exchange 2010 SP2 last week and the first 3 servers all successfully installed it without any problems. However I have hit a problem with my 4th server.
I am receiving the 'common' error 1603 in my Application log and I have already ran through many potential fixes to this problem on various posts on this and other forums, but to no avail.
I have tried the following without success:
- Turning off UAC
- Running from elevated CMD prompt
- Running from elevated Powershell command
- Removing and re-adding "Exchange Trusted Subsystem" from the Administrators group
- Re-downloading the RU4 install package to the local disk on the server
- Adding more RAM and CPU resources
I have watched the installation process and it seems to update of the native assembly files and comes to the "Starting Services" process, with which it appears to do fine as I have watched the Services starting within Server Manager while this has been running, but then all of a sudden just begins "Rolling back actions".
The only difference with this server to the others is the fact that a colleague of mine had to recover this server within the last 6 months and ran the Setup /m:RecoverServer command
to do so, could this have anything to do with it?
I have installed Exchange 2010 Service Pack 2 on this server since the recovery though.
I am running out of ideas so any help would be greatly appreciated.