The problems that you are seeing come from misconceptions on how things
work, probably from reading myriads of *tweaking* sites.
The common one is that services permanently use *resources*, - and by
*resources* 'they' mean CPU time and 'memory usage' and if one wants to
achieve ultimate *performance*, one must go on a quest to disable all the
evil that cripples it.
The above is a myth, services that are started, but not being used (like
your spooler for example 
), use no CPU time, memory will be reclaimed by
OS when there is a demand.
It may look at first that you are *freeing* memory and the idea the
*tweaking* sites 'sell' you may seems as a valid one, but. OS will not free
the memory (will not do unneeded work) when there is no need for it, and OS
will free memory occupied by idle services (trim footprint) automatically
when you have shortage. BTW, free memory is wasted memory.
You don't need to tweak, all you need to do is to install OS and use your
computer.
Don't see the above as if I'm telling you how to run your computer, not at
all, do with your computer as you please, jump on it if you want, but either
have some understanding (Windows Internals (book) is recommended) on what
you are doing (and do some tests too on the effects of every change you make
(look here for a start:
<http://forums.anandtech.com/messageview.aspx?catid=34&threadid=1678445&frmKeyw ord=&STARTPAGE=1&FTVAR_FORUMVIEWTMP=Linear>
), or have a little more faith that MS know what they are doing.
<MatrixV@gmail.com> wrote in message
news:1127933858.992483.268510@o13g2000cwo.googlegr oups.com...
> In fact it can start, but there's no response when I click button
> analyze or defagment.
> To improve the performance, I set some services to manual startup.
> Maybe that's the reason?
>
