Are you good at useing personal computer?

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Jan 19, 2012 06:07 PC personal computer
It's cloudy today.
Today is also a very cold day.
I'm bad at useing a personal computer.
This weekend, I tried to clean up the personal computer datas.
I deleted many datas.
After cleaned up, it didn't started.
Maybe I deleted what must not delete date.
I'm a little worrying about the personal computer.