installation issue

I downloaded MikroTik 3.23 iso and burn it on cd.
When i install it, after restart it says demo license expired.
Isn’t there 24 hours for testing?
What should I do to test this software?

If you have previously installed Mikrotik ROS onto the HDD before, then it may be that the install of 3.23 can still see the previous licence key data stored (hidden) on it. Remove all partitions on the HDD completely and try again.

you can try this:
First you just install ros 3.20, then remove cd after installation and insert 3.22 ros and pres enter to reboot and install 3.22 ros and it will work, it works for me on 2 PC’s, good luck.