Truly, I'm not stupid when it comes to computers. I'm very careful with my machine, no one adds or removes programs without me actually doing it. I have two firewalls, everything is up to date, and I've said I've searched and found neither paint nor the calculator. I would have no reason to remove either. So unless one of my dogs is messing with my computer, they went poof.
And I believe they probably could because a file needed for puttiing the sound icon in my tray went poof, and I've not installed nor removed software or hardware for that. Microsoft is aware of that problem.
I assure you, I know enough about computers to know about firewalls, virus software, malware remover, not to muck with the registry, not to remove anything Microsoft related (basic XP), and all that good stuff. I took a break between the Commodore 64 and my 486 with Win 3.1, but I've been using them steadily since 1996. I install hardware and software on my own, I've installed drivers and an OS several times on built machines, and I take very good care of my computer. Three people live in this house, and one is 7 and he doesn't have the ability to do anything without me, and the other is my husband who knows better to touch anything on my machine. He has two of his own.
So, yea, I'm stumped. It's annoying, but nothing major. I'd just hate for the "computer demon" to eat anything else.