https://help.tallysolutions.com/docs/ts9rel54/ts9/release_5.5.2.htm

Release Notes for Tally.Server 9 Release 5.5.2

Licensing

‚óŹ During certain licensing activities, Tally.Server 9 had to be restarted manually in administrator mode. Now, Tally.Server 9 will restart automatically in administrator mode if you have administrator rights. If you do not have administrator rights, you need to provide your Windows administrator user name and password to restart Tally.Server 9 in administrator mode.