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I want to decrypt my entire partition and turn it back into standard NTFS.

I encrypted a large partition on my 1TB drive before I took it through the airport. For this I used the in place method on truecrypt for win7.

I'm on a mac now and there doesn't seem to be any way to decryppt the drive in place. It mounts fine, but I don't want to buy another drive just so I can shift files around.

The drive is hooked up via USB. Would this be a problem?

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The feasibility is a function of your partition type,

How to Remove Encryption

Please note that TrueCrypt can in-place decrypt only system partitions and system drives (select System > Permanently Decrypt System Partition/Drive). If you need to remove encryption (e.g., if you no longer need encryption) from a non-system volume, please follow these steps.

The steps there suggest that you mount the non-system volume and copy data out.

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Thank you, I will try this. – Keyo May 25 '10 at 23:17

This (System > Permanently Decrypt System Partition/Drive) will leave you with a non-bootable partition. I wouldn't recommend it.

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Why does it make it not bootable any more? – Simon Sheehan Aug 31 '11 at 14:36
Permanently Decrypt System Partition worked fine for me, my formerly-encrypted drive was bootable afterwards. However, it ONLY works for system partitions. – mhenry1384 Apr 4 '12 at 15:32

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