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Backup Data and Surrender Tally 9 License

Backup Data

• Start Tally 9
In the Company Info menu select Backup

The Backup Companies on Disk screen appears

In the Source by default C:\Tally9\Data appears as the source folder
In the Destination provide the required folder where you want to store the backup of data.
Press Enter to start backup of data

A file title TBK900.001 is stored in the specified folder

Surrender Tally 9

Go to Gateway of Tally or Company Info menu

F12: Configure > Licensing > Online > Surrender
The surrender License request is sent to Tally Internet Services Server. On receiving a valid
  response from the Internet Service Server the license is surrendered and Tally will be in
  Educational mode
You can now proceed to activate Tally.ERP 9 by following the procedure shown below.