Probably because linux hijacked the windows bootloader and overwrote it. if you remove all partitions from the drive with gparted or similar and fresh install, it will work. The windows data may also still be recoverable, depending on your situation, but doesnt sound like it’s important anyway.
If you wanna be safe when experimenting with linux, use a seperate drive for it and disconnect all other hard drives until you know what you’re doing.
To clarify, if u decide to try again, make sure your bootloader is installed to the same drive as your OS and avoid using the same drive for two operating systems. And of course, make sure bios boota from the right device/efi mode.
Probably because linux hijacked the windows bootloader and overwrote it. if you remove all partitions from the drive with gparted or similar and fresh install, it will work. The windows data may also still be recoverable, depending on your situation, but doesnt sound like it’s important anyway. If you wanna be safe when experimenting with linux, use a seperate drive for it and disconnect all other hard drives until you know what you’re doing.
To clarify, if u decide to try again, make sure your bootloader is installed to the same drive as your OS and avoid using the same drive for two operating systems. And of course, make sure bios boota from the right device/efi mode.