And just to be clear, that's not an acceptable way of using it. (Assuming you live more than a month.)
"Total Commander for Windows is a Shareware (demo version) program. This means that you can test it for a period of 30 days. After testing the program, you must either order the full version, or delete the program from your harddisk."
https://www.ghisler.com/order.htm
The full version cost €37. (About USD 45)