A lot of trial software ties the trial period to a hardware fingerprint. When the trial ends, it ends for that hardware — and changing the HWID resets the counter. It is worth being honest about what that means.
Where this crosses a line
Resetting a trial again and again to avoid paying is a violation of the software's licence terms. It is not a criminal act, but it is using a developer's work without paying for it. We do not present that as a legitimate use of HWIDChanger.
Where the same operation is genuinely fine
The same "looks like a new machine" behaviour is legitimate in other contexts: a QA team evaluating software across hardware profiles, a business assessing a product before a bulk purchase, or reactivating something you already own after a hardware upgrade.
The honest advice
If a tool is useful enough that you keep coming back to it, the durable answer is to buy it — that is what keeps it maintained. And if you genuinely need longer to evaluate, ask the vendor: most grant extended evaluation periods on request, which is far more reliable than repeatedly resetting a trial.