Clarification: getting windows to offer "last known good" config usually requires an "abnormal" shutdown, as follows
Do NOT use the Windows Start button (your OS is ______?) Use the outer case power button: press and hold for ~10 seconds, until forced shutdown completes.
EXCEPT: avoid this technique if your HDD light is active.
Some cases have a reset button at the power button, which is just as good for forced reboot but some glitches manage to bypass the reset mechanism. Also, full power-down and 30-60 seconds of non-use was a technique to assure (supposedly) no virus load could lurk in RAM in a way which could survive the reset button.