PCs to a useful state
"One method that restores PCs to a useful state is to roll back to a previous version of Windows"
Another potential option is presumably to get a decent Linux DVD and let it do a dual-boot install, leaving the Windows user's data intact, and then use the Linux (either to move the data to something more trustworthy, or just use the Linux instead of Windows 10).
Thanks to Microsoft, the year of Linux on the desktop is approaching ever closer.
Or am I missing something?