Restore point
Also searched as: restore point · system restore · create a restore point
What it means
A saved snapshot of your Windows settings you can roll back to if a change goes wrong. It's the undo button you set up before you need it.
More detail
Making one takes a minute and costs nothing, and it's the single best habit before any BIOS, registry, or driver-level session. It won't recover deleted personal files, but it will rescue you from a tweak that broke boot or stability. The golden rule "restore point first" exists because of how often it saves the day.
The Compy Blackbook holds 174 graded entries like this one, judged against your hardware — and every change it does make is reversible, with the receipt to prove it.
See Compy →