HeyitsNeil said:
Gee, the rabbit hole does get deeper the further you go into encryption!

How does one transfer data to a new PC? Given the previous post I assume you simply transfer the encrypted data to a new disk or similar then transfer the disk to the new PC. Thereafter, the data needs to be encrypted again in the new PC. Correct?
There is no difference between copying data from an unencrypted drive vs copying data from an encrypted drive to a new system.

The act of reading the data decrypts it on the fly.

As an example, assume there was no encryption anywhere. To copy data from an old system to a new system, you would copy that data over the network, or copy it to an external drive and then take that drive to the new system, etc.

Now add encryption to the mix. You do EXACTLY the same thing. Just copy the data the same as normal.

I do have a few suggestions:

For maximum security, make sure that you are not copying the data to an unencrypted device along the way. For example, if you want to move your data by copying it to an external drive, then taking that external drive to the new machine and copying it off. For best security, encrypt the external drive with a BitLocker password before you copy data to it. That way, data will be encrypted by BitLocker as soon as you copy it and will never sit on the drive unencrypted. Then, on the destination system, you simply supply the password and you can copy the data the same as normal.

Likewise, if you are going to copy the data over the network, just encrypt the destination before doing the copy. That way the data will be encrypted the moment it lands on the drive.

The bottom line is that you do nothing different other than encrypt the destination with BitLocker in advance. The only exception is that for external media, you need to supply a password to unlock the drive.