Rule "Same architecture installation" failed while installing SQL Server 2008 R2



Installating DEFAULT instance of SQL Server 2008 R2 Express Edition with Advanced Services on a Windows 7 64bit with AMD Phenom(tm) II X4 945 Processor failed with error:


Rule Check Result 


Rule "Same architecture installation" failed.


The CPU architecture of installing feature(s) is different than the instance specified. To continue, add features to this instance with the same architecture.  



Root Cause:


Uninstallation of DEFAULT instance of SQL Server 2005 64-bit Developer edition was not clean and I was able to see instance MSSQLSERVER mapped to MSSQL.2 in the registry. After cleaning up the registry, rule "Same architecture installation" succeeded.


Comments (2)

  1. SHiva says:

    The blog doesnt give any detail information . You need to provide correct steps..

    This is not expected from a MS blog

  2. Hi Shiva,

    I should have pointed you to this KB which has the steps to do the cleanup…/955404

Skip to main content