We have created a portable version on a USB, locked to the USB with a registration key using only the Hardware ID (Serial number) of the USB-stick. However, we see the following issue with some of our customers:
- They run the file from the USB on one PC. It works.
- They insert the USB in another computer and run the file. Now it doesn’t work, it shows the Hardware ID and asks for a key.
- After this it does not work on any PC’s, including the original where it worked the first time. It just keeps asking for a new key.
What could cause this issue? I was thinking somehow the license file was deleted, but it’s still present. The Hardware ID of the USB is still the same, and if we generate a new key it works again.