All you can: ask the encryption key from the owner of the laptop.
And it might be (depending on the rules of that particular organisation and the data) that they are the owner of the data on their laptop. Then you need permission to copy it also.
Hello fellas,
I had an official laptop which was CPM encrypted for security reasons. I have returned that laptop as i have resigned from the organisation. I took back up of some movies which i had in the laptop but now i m not able to play the same in my personal laptop. As well, my ppts and images dont open.
Any assistance regarding the same will be much appreciated.

Chowhound
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