OK so all of this shit started when I downloaded the trial of AfterEffects CS4. I neglected to check/uncheck a few boxes and so it installed over a few important files of Flash CS3. When I tried to run the program(CS3, not CS4), the startup box appeared, blinked some text at me, and disappeared in under a second. After a few tries and much confusion, I uninstalled both programs, reinstalled Flash, and since it worked again I thought nothing of it. However, a few hours later, I realized Firefox was also not opening--it stopped responding as soon as I launched. I reinstalled that program as well, and it too resumed normal functioning. I thought it was over.
But over the course of the next few days I realized a few other applications were out of commission as well. I would simply reinstall these programs, but Flash and Firefox have both started sporadically ceasing to run. Every few days, I have to reinstall firefox, and just a few minutes ago Flash once again failed to open, after I reinstalled it on Thursday. I cannot trace the cause of this at all. I don't think it's a virus of any kind. Only certain .exe files are affected at seemingly random times, my computer is otherwise functioning normally, and the problem can be fixed temporarily. But it's a maddening issue, and one that I would really, really like to fix.
Does anyone have any ideas on what could be causing this or methods to fix it? I can explain things in greater detail if they are important, but this is a basic synopsis of my problem. Flash and Firefox are both very important programs for me, and this is actually starting to cause problems with schoolwork, etc. I'm using Windows, btw.
Personally, I blame Adobe.