Facing the “Application settings are lost” error in Tally Prime? Don’t panic — try these quick fixes to get back to work fast:

Power cuts while TallyPrime is open often corrupt active configuration files.

Right-click the TallyPrime installation folder and select . Go to the Security tab and select your user account.

Restart TallyPrime. The software will automatically create a new tally.cfgts file with default settings, which you can then re-configure. 2. Repair the TallyPrime Application

To avoid Windows UAC restrictions entirely, it is best practice to move the configuration data out of Program Files.