Does Deepin boot? If yes, open a command prompt, and run the command 'lsblk -f' and look at the output. On the right, under the MOUNTPOINT culumn, you will see a '/' character. That is your root file system. On the left of that line, under the NAME column is the linux designation of the drive and partition Deepin is on.
If you can only boot windoze; ( how sad ) is more difficult, since windoze can not read linux file systems.
Hope this helps.
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