A: No. Once you click "Activate commercial license," the trial is gone forever on that installation.
Most trial reset methods attempt to "scrub" the software's identity from your computer so it appears as a first-time installation.
| Method | Success Rate | Risk | |--------|--------------|------| | Trial reset tool | Moderate (older versions) | High (malware) | | Manual reg/file cleanup | Low (modern K. Plus) | Medium | | VM snapshot | High | Low (but VM only) | | System restore | Medium (if restore point exists) | Low |
The is a cat-and-mouse game. Today (April 2026), methods exist, but they require technical patience and a willingness to risk system stability. The registry purge method works for about 70% of users. The remaining 30% find their hardware silently blacklisted.
This manual method is somewhat effective for older versions of Kaspersky, but its success with the latest "Kaspersky Plus" line is inconsistent and depends heavily on the thoroughness of the registry cleanup.