please follow below process to rehost.
We already have a FAQ on this regard. I extract this as below:
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Q: How do I rehost my CodeWarrior Development Suite to another computer?
*NOTE: By rehosting, you are transferring all of the privileges of your CodeWarrior Development Suite to the new computer. To rehost your CodeWarrior Development Suite:
- Go to www.freescale.com using your new computer
- Log in to My Freescale using your registered member ID and password
- Click on CodeWarrior Licensing — "My Products" page appears showing your currently licensed products
- Click on License Options — The CodeWarrior Development Suite Details page appears
- Click on Rehost
- If necessary, determine if your CodeWarrior Development Suite is node locked or floating by going to "How do I determine if my CodeWarrior Development Suite is Node Locked or Floating?" FAQ
- Select the Host ID type
- Enter the new Host ID
- Click Submit — The online license profile updates and the Registration and Licensing System page appears, confirming your new licensing information
- For products you are entitled to license, select Get License to lock the license to the new license profile information
- For products you have already licensed, select Repair License to obtain an updated license file locked to the new license profile information
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