How to deal with when the licensed inspection software prompts again that license is required?

How to deal with when the licensed inspection software prompts again that license is required?

There are several possibilities that may cause this issue:
1. The trial version of BLC has a test period, and after the test period expires, it will prompt that a license is required.
2. If the PC disks have changed after the license, the Request Code will also change and thus require re-licensing.
3. If the BIOS is upgraded, the Request Code will change too.