Install just SQL 2012 Studio, not databases instances

We have working sql2008 and for some strange reason when installing sql2012, either DB or only tools, kept getting problems.

Any specific consideration for installing sql2012 tools on top sql2008?

Ok, thanx.

First, the installation is not for a server, but a Windows 8 Pro 64bit notebook.

The problem we had was that we wanted to install the sql 2012 express, DB and Tools some months back.  And we wanted to install in this same Windows 8 notebook, which had SQL 2008 express install and running.

The problem was that, for some strange reason, it was not successful.  We tried installing only the tools.  Also tried uninstalling sql 2008 complete and installing sql 2012 and again, problems.

Now we want to try install sql 2012 tool again, not the DB/Instance.  Any advice will be appreciated.

without seen "clear" error messages or what exactly goes wrong, it's impossible to give any better help

We have the error saved somewhere when we last tried to install it, so we going to see if we can post them.  Nevertheless, at this point, for the purpose of this question, what we want to do is to know the steps to install sql2012, the tools only for querying (not the sql2012 instance), on top of a current sql2008 instance.

Give us your recommendation so we can try it.

For some reason it worked!

Thanx

Thanx