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#11
Once you get Macrium running you can experiment fearlessly.
Yes. Two different things. Your MB manual should tell your what the BIOS Fast boot is.
Here is Windows Fast Startup.
Turn On or Off Fast Startup in Windows 10
Thanks for your help everybody, I reinstalled Windows over the top of the old Windows partition, then reinstalled GRUB2 via the Linux GUI tool boot-repair. Now when I boot I can choose my OS and both Linux and Windows work fine.