Updated link - read before uninstalling Prepar3D

http://www.prepar3d.com/forum/viewtopic.php?f=6322&t=113913..

Before making any major changes to your computer (motherboard, operating system changes, etc.,)  You will need to at least Uninstall \ Deactivate the Client to avoid activation delays 

By Deactivating the Client only the Prepar3D License will release from your Operating system allowing you to reactivate again when you have completed your computer changes.

In the event you need an additional activation, Please e-mail [email protected] with a very brief explanation of the reason you need your license reactivated, along with your license ID and invoice number.  Activation requests are delivered in under two business days, Weekends and holidays are not Included 

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To deactivate the Client follow the steps below

Note:  An Internet connection is required to deactivate the Client 

Navigate to your Control Panel,  Right Click on "Prepar3D Academic \ Professional Client"  Click Uninstall

 

 

 

The Programs and Features box will appear,  Click Yes to Uninstall the Client 

 

 

Click Yes to deactivate the Client

 

 

Prepar3D has now been successfully deactivated 

 

Please see this short video on the above process.   How to Deactivate Prepar3D (Video)