If it still fails to load properly, go ahead with the next stepsĢ. Press once the power-on button to turn on the PC and wait if it will start now. Remove and unplug any external periferals and accessories. Press the power on-button on your PC and hold it for about 5-10 seconds until your computer powers off completely. I have never seen Windows to successfully repair itself automatically - it has always failed.
your HDD or RAM) or it may be caused by faulty Windows Update, some other faulty update/driver, corrupted bootloader / Boot Configuration Data in Windows etc. It may be caused due to hardware problem (e.g. This is happening because Windows cannot start/boot.