Computer problem. on the desktop the icons, toolbar, and start button are gone. help?

The only thing that shows up is the background picture, and I can't right click anywhere. I have to press ctrl + alt + delete to get places. It won't let me go to the control panel, and if i open a new task and type in 'explorer', everything will come back for about 3 seconds and then disappear... show more The only thing that shows up is the background picture, and I can't right click anywhere. I have to press ctrl + alt + delete to get places. It won't let me go to the control panel, and if i open a new task and type in 'explorer', everything will come back for about 3 seconds and then disappear again. Also, I can not do anything with the windows key on the keyboard. I had some sort of spyware called 'mirar' but I got rid of it, and I rearranged the room a few days ago and plugged the computer into a different outlet, maybe they have something to do with this? I have tried starting the computer in safe mode but that didnt work either. Can I fix this or do I have to get a new CPU?
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