This process requires administrator rights. Right-click your Tally product exe, and select 'Run as administrator' to perform this operation.
This error occurs when a user with insufficient rights tries to activate, update, or perform any operation that requires administrator rights.
Login as an administrator or run Tally.ERP 9 with administrator rights.
To run Tally.ERP 9 with administrator rights
1. Go to the folder where Tally.ERP 9 is installed.
2. Right-click your tally.exe.
3. Select Properties.
4. Click Compatibility.
5. Check the option Run this program as an administrator.
6. Click OK to save the settings.
Or
1. Go to the folder where Tally.ERP 9 is installed.
2. Right-click your tally.exe.
3. Select 'Run as administrator'.
Now, you can run your Tally product with administrator rights.