Lenovo laptop Vista comes with a relatively good gadget that can scan the hard drive for errors. The specific steps are as follows:

(1) Open My "Computer" and select a hard disk partition that needs to be tested.

　(2) Right-click on the partition, select "Properties" in the pop-up menu bar, and then select the "Tools" tab in the properties window.

(3) Click the "Start Check" button in the "Error Check" box, and click "Start" in the pop-up check disk window.