My "calculations per second" went down

Hamdeath

Reputable
Jan 31, 2015
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4,630
Hi everyone
First of all my processor is i5-3230M CPU @ 2.6GHz
When I uses the Windows7 rating (the one that evaluate your pc components), I got about 7 points for the "calculations per second but few days ago I felt that my pc is stating to be slow so I tried it again and then I got 4.9 for the "calculations per second".
I have no idea why it went down on its own. I verified my matérials and all 4cores was showen with no problems.
Does anyone knows what's the problem and haw can I fixe it?
Thank you.

Edit: this is what CPU-Z shows me :
http://postimg.org/image/qe086g47z/
 
Solution
Run through all tabs of ccleaner and remove everything it finds. If that however does not better (or fix) the issue, a windows reinstall after a HDD/partition wipe (format) is your best bet.