Hi,

I'm running sql services under 64-bit machine. The SQL server installed on my machine is 2008 R2 and is also running in 64-bit mode.

Does anyone know why I'm getting the following error in windows event viewer:

The SQL Server (MSSQLSERVER) service failed to start due to the following error:
This version of SQL Server (MSSQLSERVER) is not compatible with the version of Windows you're running. Check your computer's system information to see whether you need a x86 (32-bit) or x64 (64-bit) version of the program, and then contact the software publisher.

Although the error appears, the SQL Server service is up and running just fine...

Thanks

Is your Windows 64-bit version also?

Yes... windows is 2008 R2 (64-bit)

Is it up to date on Service Packs?

Personally, I suspect there is a second instance that may not be running. Is this the default instance, or a named one?

There are no service packs available for sql server 2008 R2.

I'm using the default instance.

Do you have other suggestions?