https://help.tallysolutions.com/docs/te9rel65/Licensing/surrender_license.htm

Surrender Your Tally.ERP 9 License

You need to surrender your Tally.ERP 9 license if you want to use the license on another computer.

1. Start Tally.ERP 9.

2. Click F12: Configure > Licensing > Surrender License .

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.

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 Surrender License screen, as shown below:

4. Press Enter to surrender your license. A confirmation message appears once your license is surrendered.

Note: If you are surrendering your site license, you can enter the site administrator e-mail ID and password.