I put win7 on my ssd and when i installed sp1 it was placed on my slower hdd. I was asking if this will cause issue or an overall slower performance.
It does not matter where the sp1 installer is, it could be on a CD. When you double click on it and it installs (takes a LOOOOOONG time), it will be installed INSIDE your Windows, which by the way, is in the SSD.
So, in resume, when the sp1 and other updates are installed, they are installed INSIDE your Windows.
You can delete the installers (what you downloaded) after the installation (after 2xclicking and long-waited action), in order to save space in your slower HD. There is NO WAY you can install updates away from Windows. You just have the installers in the HD.
The updates WILL BE installed in the SSD: there is NO OTHER WAY! Therefore your question does not have any alternatives. Just install it, it WILL BE on the SSD. Only the package (that you can delete) will remain on the HD. Am I clear?...