I don't know if it follows those exact steps, but in the last few months I had several times a machine crash (flaky power supply) in the middle of various Windo

I don't know if it follows those exact steps, but in the last few months I had several times a machine crash (flaky power supply) in the middle of various Windows Updates and it always recovered pretty well. It looked to this outsider like there was some sort of journalling going on.