To extend your desktop to two monitors using Windows 7, you need to ensure that your graphics card and drivers support this feature. Here are some steps you can follow to troubleshoot and set up dual monitors with extended desktop on Windows 7: 1. Check Graphics Card Compatibility: - Verify that your graphics card supports dual monitors and has the necessary outputs. Most modern graphics cards support multiple monitors. 2. Update Graphics Drivers: - Make sure your graphics drivers are up to date. Outdated drivers can cause issues with multiple displays. To update your drivers: - Right-click on the desktop and select "Screen Resolution." - Click on "Detect." - If both monitors are detected, click on the monitor you want to...