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#11
Tap the HP ESC or F9 key at boot repeatedly, choose the CD drive to boot. Do you then get a prompt to Press any key to boot CD? Hit Enter and see if it loads.
Run Startup Repair a few times to see if it restores the animation.
If it doesn't ask Baarod by messaging him at the link I gave you to write you the Commands to run to restore Win7 boot animation, as he did for me for Win8 in a Dual Boot issue we had at EightForums recently which I linked above. It may even be the same commands.
That was the first time I haven't had to reinstall on this issue.