I have a 2008R2 server that is getting the message "ERROR LOADING OPERATING SYSTEM" on bootup. I have tried several things including fixboot and fixmbr and put in a windows 7 disk and ran the Repair startup option. Any suggestions of what else i can try to get this server to boot up?

If repair startup fails, your options are pretty limited. I would format the system drive and reinstall the OS. Bill

Try In-Place Upgrade: http://support.microsoft.com/kb/2255099 Since it's Windows 7 issue, please ask in Windows 7 forum: http://social.technet.microsoft.com/Forums/en/category/w7itpro Regards, MiyaMiya Yao TechNet Community Support

If repair startup fails, your options are pretty limited. I would format the system drive and reinstall the OS. Bill

Try In-Place Upgrade: http://support.microsoft.com/kb/2255099 Since it's Windows 7 issue, please ask in Windows 7 forum: http://social.technet.microsoft.com/Forums/en/category/w7itpro Regards, MiyaMiya Yao TechNet Community Support

Please try DART tools Maybe this could be helpfull to you http://www.microsoft.com/en-us/windows/enterprise/products-and-technologies/mdop/dart.aspx You can use scf /scannow or StartRep.exe. MOre you can read here https://dubravkomarak.wordpress.com/2012/07/05/server-2008-r2-wont-boot-after-restart/Best regards Dubravko Marak MCP Blog: Windows Server Administration Please remember to click Mark as Answer on the post that helps you, and to click Unmark as Answer if a marked post does not actually answer your question. This can be beneficial to other community members reading the thread.

the issue ended up being that i needed to change the system BIOS to a UEFI compatable ROM. Made the change and the system booted just fine.