Hello, I am new to these forums, but I saw the level of expertise that was given in other post and wanted to give it a try. Recently my computer started acting weird and it got worse and worse. Now whenever I log on the computer I have about a 5 sec window until windows explorer fails. Once it fails the computer becomes unresponsive. I can't log onto the net. I can't even get into the task manager because as soon as I hit ctrl+alt+del I get a message that says Preparing security options. Sometimes that message goes away and I can click on the button that says: Start task manager - when I do that though the task manager window opens and then immediately goes to not responding. So now I'm at a lose of what to do and I was hoping I might find some help among fellow computer brains. I appreciate the help.