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Do a "Custom", rather than "Typical" Install & choose not to Install Instant DVD Recorder. You don't want it anyway. It causes several probs related to your DVD-RW Drive etc. Pinnacle have known about this for 4 years now, yet still include it within the Prog. It's no longer supported, anyway. In fact even the Pinnacle Rep Marc P who Posts on the Forum, also recommends that you either don't Install or Uninstall it
I haven't got S11, so I don't know if Mediamanager/Server is still included. If yes, choose not to Install that as well. Yet again, this is a useless prog & no longer supported.
I suggest you Install just the Prog Disk & leave the so-called "Bonus" content Disk to a later date ( It has it's own Installer), after you've Explored the Disk to see what's worth Installing. Most of the content has to be purchased separately.
After you've Installed the Prog, Update to the latest S11 Patch, from the Downloads page.
You need to check that your PC meets the "Recommended" not "Minimum" Specs for Running S11 Ultimate.
Please enter them into your Profile. How to, in THIS Post. Click on my Username above my Avatar, for an example.
S11 Ultimate is very good value for money, when it works. So it's best to identify any potential probs at the beginning, rather than going through hoops later-on, trying to fix them.
Good luck
ADDED - The Installer progress bar may appear to get stuck, but probably isn't. So leave it for a couple of minutes. But you don't want InstantDVD anyway.