Cannot install SQL Server 2008 R2 service pack 1

I upgraded SQL 2008 t0 2008 R2 the other day.
Rebooted the server had the software team check the databases.
Everything worked fine

I tried installing 2008 r2 service pack 1 and the installation failed with a reference to look at the summary.txt file.
I looked at the file but couldn't tell why it failed.
I have posted the file.
I would like to know what I must do in order to get service pack 1 installed?
I would like to do it without removing SQL and re-installing.
I also have 2008 express installed that I will be upgrading to 2008 r2.

Who is Participating?
fromnaijaConnect With a Mentor Commented:
You appear to have installed both Express and Standard Editions on the same server, right? I think that is the root cause as you cannot have both editions installed on the same machine.
How did you install (or try to) the SP1? From Microsoft Update? In this case, download the SP1 from MS Site and install it. This kind of install should give you more infos.
kallatechAuthor Commented:
I downloaded the iso from microsoft, mounted it and tried to install it.
kallatechAuthor Commented:
We had sql 2008 express installed running a different instance.
sql 2008 standard installed running under its own instance and it worked fine.
I upgraded the sql 2008 standard instance to sql 2008 r2.
kallatechAuthor Commented:
Thank you
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