Hi Liuwei-cesm,
What the screenshots show me is that the PC is booting from the correct drive but there has been a corruption in your operating system files. You're attempting to extend the drive but there is no unallocated space for it to be extended into (this is what the error message is trying to tell you). You should have unallocated space on the drive, did you create a partition in the space you wish to extend into?
Here's a guide to extending partitions on windows using disk management:
https://learn.microsoft.com/en-us/windows-server/storage/disk-management/extend-a-basic-volume
Obviously, you need the PC to boot for this to work and your best option is to try a repair and go from there.
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