https://help.tallysolutions.com/docs/te9rel64/Licensing/reactivate_license.htm

Reactivate Tally.ERP 9 License

You need to reactivate your Tally.ERP 9 license if you have surrendered it. Reactivation could be for subsequent activation on the same computer or another computer.

To reactivate your Tally.ERP 9 license

1. Start Tally.ERP 9.

2. Click V : Reactivate Your License in the Startup screen, as shown below:

Note: You can alternatively, click F12: Configure > Licensing > Reactivate License .

o If you are a Microsoft Windows standard user, and do not have the required rights, a message appears as shown below:

Click Yes , and enter your computer administrator username and password to restart Tally.ERP 9 with administrator rights.

o If you have Microsoft Windows administrator rights, a message appears as shown below:

Click Yes , for Tally.ERP 9 to restart with administrator rights.

3. Enter the Administrator e-mail ID and Tally.NET password in the License Reactivation screen, as shown below:

If you are the administrator of more than one site, the License Reactivation screen displays a List of Sites that can be reactivated, as shown below:

Select the license that you want to reactivate.

4. Press Enter to reactivate. A confirmation message appears on reactivation of your license.

See also

Surrendering Tally.ERP 9 license

Configure Existing License

Reactivating Tally.Developer 9 license

Reactivating Tally.Server 9 license