How to Upgrade to Release 5? 

You need to take a data backup before upgrading to the higher releases.

To upgrade to Release 5

1.    Take data backup in existing Tally.ERP 9 release.

2.    Press F12: Configure > Licensing > Surrender.

3.    Enter the administrator or site administrator e-mail ID and password.

4.    Press Enter to surrender the license.

5.    Install Release 5 in new Drive/folder.

6.    Load Release 5 and reactivate the license.

See also

How to upgrade to Release 5.x in the existing Tally.ERP 9 folder?

How do I access license from older release in Release 5.0 or Higher?