Solution
Log in to your ESET Endpoint Encryption Server.
Click Workstations, select the workstation that you want to decrypt and click Details.

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Click Full Disk Encryption.

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Click Decrypt to select disks or disk partitions that you want to decrypt.

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Click Decrypt in the bottom right part of the window to send the decryption command to the Workstation.

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The workstation will begin the decrypting process when it is synchronized with the server. You can synchronize the workstation with ESET Endpoint Encryption Server manually.