So, this is not happening on my computer, it's happening on my sister's (which is the one I am using.)

She confronted me with the problem that on a certain pet site there was a problem. It only happens on this computer so it's not a glitch on the site. I was using firefox so I tried SWITCHING to Internet Explorer, but that wouldn't even open.

On the forum posts near the bottom of the page show up completely blank. I was GOING to do a screenshot of it and ask another person on the site, but FOUND out that Microsoft Word wouldn't open. My next resort was paint which responded with a pop up message saying that paint could not open a new file.

Most programs won't even open. None of the Microsoft stuff will open and sometimes when I open a new tab in firefox it's all black.

There are only a few THINGS installed on this computer that I didn't get approved by a computer geek. One such program is AC3filter. Could it be causing this?

I really don't know what is happening with the computer and since I'm the one who installed AC3filter (which won't let me uninstall it) I'll be in deep trouble.

Also, Half the time when you click on My Computer it comes up asking you about a share drive.

The computer CPU says lenovo and 3000 J Series. I don't know exactly what those mean, but it might help someone with diagnosing the problem.Could you please let us know what operating system is being used on this computer?