Upgrade paths

Written on Jan 23 08 // Windows Server 2008, Windows Server 2008 Core.

After receiving the question from a customer about upgrading, a process I haven’t done in about five years I had to do some research.

 The following table shows the valid paths, and there are a few caveats:

No cross-platform (32 bit to 64 bit or vice versa)

No 2003 (any edition) to Server Core

No uninstall after upgrade (rollback is possible on a failed upgrade though)

Valid paths (Table from Microsoft):

If you are running: You can upgrade to this release candidate version of:
  • Windows Server 2003 R2 Standard Edition
  • Windows Server 2003 Standard Edition with Service Pack 1 (SP1)
  • Windows Server 2003 Standard Edition with Service Pack 2 (SP2)
  • Windows Server 2008 Standard RC0
  • Full installation of Windows Server 2008 Standard
  • Full installation of Windows Server 2008 Enterprise
  • Windows Server 2003 R2 Enterprise Edition
  • Windows Server 2003 Enterprise Edition with Service Pack 1 (SP1)
  • Windows Server 2003 Enterprise Edition with Service Pack 2 (SP2)
  • Windows Server 2008 Enterprise RC0
  • Full installation of Windows Server 2008 Enterprise
  • Windows Server 2003 R2 Datacenter Edition
  • Windows Server 2003 Datacenter Edition with Service Pack 1 (SP1)
  • Windows Server 2003 Datacenter Edition with Service Pack 2 (SP2)
  • Windows Server 2008 Datacenter RC0

Find the complete information here: http://download.microsoft.com/download/e/6/3/e63cf2f6-7f71-450b-8e4a-dace88e99456/readme.htm#BKMK_System

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