@murenzidan looks like a well documented error. "The "Unmountable Boot Volume" error message occurs due to a variety of reasons. It can be due to a damaged file system and cannot be mounted, or the basic input/output system (BIOS) settings are configured to force the faster UDMA modes. It can also occur if there is a problem in the system hard drive or in the partition where your Windows is installed from [https://answers.microsoft.com/en-us/windows/forum/all/windows-10-unmountable-boot-volume-error-message/a8fe5140-8594-4355-84fc-9f9b89163e7a|here]
Try the things that are suggested by Microsoft [https://answers.microsoft.com/en-us/windows/forum/all/windows-10-unmountable-boot-volume-error-message/a8fe5140-8594-4355-84fc-9f9b89163e7a|on here]