Hard disk not opening

Jun 9, 2018
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I had this old computer that stopped working fine so I took out the hard drive, put it in a casing and tried to connect it to my system but it doesn't come up.
I get 2 partitions, system reserve and local disk G, the system reserve opens but shows it's empty even though it says some memory is used and I cannot even interact with the local disk G at all cause it hangs my computer till I unplug it.

Please help, I can't lose all my memories.