Firstly, ensure that all the wires as well as cords are connected properly to both the computer and any peripherals. Check for the any visible damage, such as frayed wires or bent pins. When whatever appearance fine, try unplugging and replugging in the connections.3. Blue screen of death: If your computers flashes a blue display using an error message, it means that Windows has recently encountered a critical system failure and needs to turn off to restrict further damage. This can occur due inside faulty hardware, corrupted drivers, incompatible updates, or another system errors. You Will Need to restart your computer inside safe mode, run a system restore, or even reinstall Windows.