I run a virtual environment, so I would just revert the snapshot. Takes two seconds.
If you want to use windows tools you can roll back to previous restore point, or remove individual updates using windows update.
There is probably some command line or powershell that can remove updates, but that should be the same effect as the gui.
On a home computer I don't see anything good coming from shutting security updates off. I only do this on some production servers when I need to be very picky about what updates go on to it, and make sure they are vetted.
Windows used to have an approval mode on the client side, i think it was download but do not install unless you approve.