Assume I bought or got a desktop/notebook with a pre-installed Windows 10 system.
The hard disk is either MBR or GPT based and contains the typical partition scheme
with
Windows Recovery partition, Efi System partition, Microsoft reserved and Windows 10 main partition.
Now I want to...
boot manager
boot options
compatibility
desktop
dual boot
efi system
free space
gpt
hard disk
installation
mbr
microsoftreserved
notebook
operating system
partition scheme
partitioning
recovery partition
system configuration
windows 10
windows 7