# License Reactivation Tool

Once a license is invalidated you can reactivate the invalidated license using this tool. If you deploy hardware identification locks, you can use the License Invalidation Tool and License Reactivation Tool to enforce invalidation of a license on one machine to allow your licensee to move the installation to another machine.

To reactivate a license, load your .NET Reactor project, open the License Reactivation Tool, enter the Hardware ID of the corresponding machine and click "Generate Reactivation Code ". Every time you click on "Generate Reactivation Code" a new reactivation code is generated. Please note, each reactivation code is only valid for one reactivation! To reactivate a license, please use the method Status.ReactivateLicense(string code) of the library License.dll (part of the SDK).