It sounds like your laptop is configured to boot directly into the BIOS/UEFI setup utility upon startup or when you press Ctrl+Alt+Del. This behavior can sometimes occur due to misconfigured BIOS settings or a hardware issue.
Here are a few steps you can try to troubleshoot the issue:
Check BIOS settings: Make sure that the boot order is correctly configured in the BIOS/UEFI settings. The boot order should prioritize the internal storage device (usually the hard drive or SSD) where your operating system is installed.
Reset BIOS settings: Sometimes, resetting the BIOS settings to their default values can resolve issues like this. Look for an option in the BIOS setup utility to reset settings to default or remove the CMOS battery momentarily to reset the BIOS.
Update BIOS firmware: Check if there are any updates available for your laptop's BIOS firmware. Updating the BIOS to the latest version might resolve compatibility issues or bugs causing this behavior.
Hardware diagnostics: Run built-in hardware diagnostics (if available) or third-party diagnostic tools to check for any hardware issues that could be causing the problem.
Contact manufacturer support: If the issue persists after trying the above steps, it's possible that there could be a hardware issue with your laptop. Contact the manufacturer's support for further assistance or to inquire about warranty coverage if applicable.
By going through these steps, you should be able to narrow down the cause of the issue and hopefully resolve it.