A user's Windows computer started running slowly after the installation of a CAD program. The computer has intermittent timeouts and often has to be restarted to restore functionality. The computer seems to work correctly if the application is not running. Which of the following should the technician do **next** to troubleshoot the issue? **(Select two)**.

Replacing the video card may not address the issue if the slow performance is related to system resource requirements rather than hardware failure. Without verifying the software's compatibility with existing hardware, this action could be unnecessary and costly.

Installing a new case fan is unlikely to resolve software-related performance issues. While overheating can affect performance, the symptoms described suggest that the problem arises specifically when the CAD program is active, pointing more towards software or system configuration issues.

Running a disk check may help identify hard drive errors but does not directly address the compatibility or resource allocation issues that could stem from the CAD program installation. This step may be more relevant if there are signs of disk corruption, which is not indicated here.

Reinstalling the application could help if it was improperly installed or corrupted. However, it is more critical to first understand whether the system meets the application's requirements and to check for related errors in the Event Viewer, as these steps can provide more targeted solutions.