A Blue Screen of Death (BSOD) is a critical error that occurs in Windows that forces the operating system to shut down to prevent damage to your computer ¹ ² ³. A BSOD is also known as a "stop error" or "system crash" and can occur during the upgrade process of Windows 10, when the computer boots up, or randomly when actively using the device.

Some common reasons for a BSOD include:
- Outdated or corrupted BIOS
- Dead CMOS battery
- Bad PC shutdowns
- Corrupted CMOS data
- Physical damage to the motherboard
- Interruption during BIOS update
- Corrupted BIOS update

If you are experiencing a BSOD, try these steps to resolve the issue:
- Uninstall incompatible apps
- Clear out corrupt downloads
- Disconnect non-essential peripherals
- Do a clean install of Windows 10
- Check for updates with Windows Update
- Try starting your PC in safe mode

The Blue Screen of Death (BSOD) is a notorious error screen displayed by the Microsoft Windows operating system when it encounters a critical system error from which it cannot recover safely without risking system stability. The screen typically appears as a blue background with white text, hence its name, and contains information about the error, including an error code and a brief description of the problem. BSODs are often caused by hardware failures, incompatible or faulty device drivers, software conflicts, system file corruption, memory issues, or overheating. When a BSOD occurs, the system halts, and the screen is displayed to prevent further damage to the system. Users usually need to restart their computers to recover from the error.