What should I do if win7 is slow?

What should I do if win7 is slow?

1. Click the Start menu in the system window, and then type “msconfig” to search;

2. Click the Enter button. A dialog box will pop up and you will find it inside. And select the “boot“ tab, then click “Advanced Options 

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3, a dialog box will pop up, select "Large Memory" ”, at the same time, the maximum value of the processed data can be selected;

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4, after the above steps are completed, you need to restart the computer to take effect. If there are other programs running, you can save them first, and only if you restart your computer, you can guarantee that the changes will take effect.