issues launching iTunes windows 7 64 bit

Hi people who are hopefully a lot smarter than I am,

I can't launch iTunes on my computer. I've searched the discussion boards and tried all the fixes I've seen suggested and nothing is working. When I double-click on it it does nothing; if I hold down ctrl-shift to start it in safe mode it does nothing; I've repaired, uninstalled and reinstalled QuickTime several times; I've repaired iTunes a million times as well. It isn't showing up in my task manager at all either. The action center just keeps telling me to download the most recent version to fix the launch issue and like I said that's done nothing. I even connected my iPad via USB and that didn't get it to launch and tried deleting SC Info .sidb and .sidd files. Also, it's not responding to my storm of curse words. I've tried so many things I can't remember them all.

I'm not sure if this is related, but a couple days ago the action center already showed iTunes had failed to launch several dozen times and then my computer would freeze when it was trying to load Windows and the diagnostics were indicating HD failure. I booted to a CD of SeaTools for DOS that I had from when my HD failed over a year ago and it failed the short test and found a bunch of errors in the long test but it was able to repair them. I can get back into Windows now but my super good friend iTunes is still holding out.

What I would really like to do is fix it with a hammer, but something tells me then nothing else on my computer will work either so I'm open to any other suggestions. Has anyone else run into this issue and found a fix?