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Here's how to Fix Windows Computer turns on but no display.

If your Windows computer turns on, but you don't see anything on the display, it can be an indication of various hardware or software issues. Here are some steps you can take to troubleshoot the problem:

1. Check monitor connections: Ensure that the monitor is properly connected to the computer. Check the video cable connections on both ends (computer and monitor) and make sure they are secure. If you have multiple video ports (such as HDMI, VGA, or DisplayPort) on your computer and monitor, try connecting to a different port.

2. Verify monitor power: Confirm that the monitor is receiving power and turned on. Check the power cable connection and look for any indicator lights on the monitor. If the monitor has multiple inputs, make sure it is set to the correct input source.

3. Restart the computer: Sometimes, a simple restart can resolve display issues. Turn off the computer, wait a few seconds, and then turn it back on. Pay attention to any error messages or sounds that may indicate a specific problem.

4. Test with a different monitor: If possible, connect your computer to a different monitor or a TV to determine if the issue is with the display itself. If the alternate monitor displays properly, it suggests a problem with your original monitor.

5. Check graphics card connections: If you have a dedicated graphics card installed, ensure that it is properly seated in its slot and that the power connectors (if any) are securely connected. Dust or debris in the card's slot or connectors can also cause issues, so you may want to clean them carefully.

6. Reset BIOS settings: In some cases, incorrect BIOS settings can cause display problems. To reset the BIOS settings, turn off the computer, unplug it from the power source, remove the CMOS battery (a small circular battery on the motherboard), wait a few minutes, and then reinsert the battery. Plug in the computer and turn it on. This will reset the BIOS to its default settings.

7. Check for hardware failures: If none of the above steps resolve the issue, it's possible that a hardware component (such as the graphics card, RAM, or motherboard) is faulty. In such cases, it may be best to contact a computer technician or the manufacturer's support for further assistance and potential repairs.

Remember that the troubleshooting steps may vary depending on your specific computer model and configuration. If you are not comfortable performing hardware-related tasks, it's recommended to seek professional help to avoid any potential damage.

i. Mac computers can run various operating systems, such as macOS, Windows, and Linux. However, some users may encounter an issue where their Mac turns on but the display remains black or blank. This can be caused by various factors, such as:

- Power or connection problems, such as a damaged or loose power cable, a faulty power outlet, or a low battery.
- Display or brightness issues, such as a broken or disconnected screen, a low or zero brightness setting, or a misconfigured display mode.
- Software or firmware issues, such as a corrupted or incompatible operating system, a faulty or outdated driver, a malware infection, or a glitch in the startup process.
- Hardware or component issues, such as a defective or loose logic board, memory module, graphics card, battery, or fan.

Some possible solutions to fix Mac turns on but no display are:

- Check the power and connection of your Mac and make sure it is plugged in securely and has enough charge.
- Adjust the brightness of your Mac using the keyboard shortcuts (F1 and F2) or an external monitor and make sure it is not set to zero or very low.
- Force restart your Mac by holding down the power button for about 10 seconds and then pressing it again normally.
- Reset the NVRAM/PRAM and SMC (System Management Controller) of your Mac to clear any settings or data that may cause display issues.
- Boot your Mac in safe mode or recovery mode to troubleshoot any software or firmware problems and repair your disk, update your system, or reinstall your operating system if needed.
- Run Apple Diagnostics or Apple Hardware Test to check for any hardware or component failures and contact Apple Support or an authorized service provider if any errors are found.

Learn more@ https://www.youtube.com/c/ITGuides/search?query=Windows.