I have enabled the TPM chip on my windows 8.1 pro laptop. I have created a usb key. When I try to change ownership of the laptop and it asked for the Key i get an error that the key is not correct. This is a new key created through the wizard how can it be not correct. I can not proceed with the exchange due to this issue. 

Anybody know what to do here?

TPM Ownership

In order for Windows to use the TPM to store BitLocker keys, Windows must control the TPM. Windows 8 system will take control of an un-owned TPM automatically, but Windows 7 requires a couple extra steps.

1. Open the TPM Console as administrator: On the Start menu, type tpm.msc then right-click the TPM.msc icon in the search result and select Run as administrator.

   
   Figure 3: TPM Management Console

2. Select the action Take control of the TPM or Initialize TPM.
3. Choose the option to automatically create the password.

   
   Figure 4: Creating a TPM password.

4. When prompted, you dont need to save TPM password. Just click Initialize.

   
   Figure 5: You don't need to save the TPM password.

   
   Figure 6: Initializing the TPM.

5. You may be prompted to reboot the computer. When the computer restarts, but before it begins to load Windows, you should see a prompt asking if you want to allow a change to the TPM configuration. Select Modify with the arrow keys and hit enter.

   
   Figure 6: Select Modify to confirm TPM ownership change.

At this point, Windows owns the TPM and will be able to use it to store BitLocker information.

Ref : https://www.uvm.edu/it/security/encryption/bitlocker/?Page=tpm-troubleshooting.html

To re-own that chip, you simply need to delete it. That's all. Unless you need its contents, there's no reason to take ownership, first.

To re-own that chip, you simply need to delete it. That's all. Unless you need its contents, there's no reason to take ownership, first.

• Proposed as answer by Deason WuMicrosoft contingent staff, Moderator 6 hours 21 minutes ago

To re-own that chip, you simply need to delete it. That's all. Unless you need its contents, there's no reason to take ownership, first.

• Proposed as answer by Deason WuMicrosoft contingent staff, Moderator Thursday, April 16, 2015 1:00 AM

@Deason Wu: What you selected as answer is a description of something not even related to the question. It is simply a "how to setup a tpm".