1. On the desktop of win7 operating system, click Open 360 Security Guard to enter.
2. Enter the main interface of Security Guard, and click the Computer Experience button in the toolbar in the upper left corner to enter.
3. As shown in the figure below: Click more buttons in the lower right corner to continue the next operation.
4. Click on the left menu My Tools, and select the main drive option to enter.
5. After scanning, click one button to repair.