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lemur7; I ran CCleaner's registry cleaner, restarted and the damned driver is still there. LOL, so stubborn. Still can't uninstall/reinstall.
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KarumA; I tried looking for drivers on Canon's official site. To my surprise, I can't even find my model there.
Maybe I overlook. Your suggestion about the probability of it being incompatible with Windows 7 got me searching on the Internet about it. Saw this thread here and I'm starting to wonder. I think I'll try emailing the company and see what they say.
I think I have just confirmed that Windows 7 works with my printer. Just as you suspected, the driver wasn't compatible. Now I'm gonna see if I can get the right one.
Thank you both, I'll continue looking for solution.