You assume, that both Microsoft and Lenovo will create a restore point before applying updates to your computer. I did… and it cost me dearly!  I had to rebuild my machine from scratch!  Restore points require disk storage, and there is a screen (see below) where the amount of the disk to be used for restore points is specified.  In my case the amount was set to “0” (zero), and then when the Lenovo updater tries to create a restore point, it failed. There was no warning that it failed! [more]