I mean for instance. I dual-boot Linux and W11 atm. For some reason my Windows 11 needs to be formatted back because of the virus or etc or SSD replacement with fresh installation of Windows11 and of course bitlocker will be activated automatically after WIndows have been reinstalled it back from the scratch. Will this affect my other ext4 or Btrfs OS partition? or do I need to back up of my Linux important files on that partition before W11 mess up my Linux?
I don’t see why it would affect anything but Windows’ NTFS partitions. Unless you still use MBR boot, all you’d need to do after a Windows reinstall would be to re-order the boot entries in your UEFI settings. Bitlocker operates on partitions, not full disks.
You should probably still back up your important files, of course, just in case your drive randomly dies…
I mean for instance. I dual-boot Linux and W11 atm. For some reason my Windows 11 needs to be formatted back because of the virus or etc or SSD replacement with fresh installation of Windows11 and of course bitlocker will be activated automatically after WIndows have been reinstalled it back from the scratch. Will this affect my other ext4 or Btrfs OS partition? or do I need to back up of my Linux important files on that partition before W11 mess up my Linux?
I don’t see why it would affect anything but Windows’ NTFS partitions. Unless you still use MBR boot, all you’d need to do after a Windows reinstall would be to re-order the boot entries in your UEFI settings. Bitlocker operates on partitions, not full disks.
You should probably still back up your important files, of course, just in case your drive randomly dies…