The only SUCCESSFUL AND RELIABLE way I found to prevent Windows 10 from doing this shit was to remove the HDD from my ThinkPad on which I have Linux, then install Windows on SSD, then put back Linux HDD, then in BIOS deprioritise booting SSD, so I can only manually select and boot SSD/Windows when I really want to use it.
This approach means there is only 1 existing OS on my machine – Linux (Debian) – unless I quick select different boot device. There is nothing that can defeat this approach, and is the best one.
And then Windows overwrites your bootloader so it can only boot into Windows.
The only SUCCESSFUL AND RELIABLE way I found to prevent Windows 10 from doing this shit was to remove the HDD from my ThinkPad on which I have Linux, then install Windows on SSD, then put back Linux HDD, then in BIOS deprioritise booting SSD, so I can only manually select and boot SSD/Windows when I really want to use it.
This approach means there is only 1 existing OS on my machine – Linux (Debian) – unless I quick select different boot device. There is nothing that can defeat this approach, and is the best one.
There is one better way, telling your linux bootloader where the windows install is so you don’t have to go to bios when you want to boot windows
I keep no connection between Linux HDD and Windows SSD at all. I do not trust Windows.