If you simply want to reinstall Kutools on the same machine (not resetting the trial, but starting fresh after a long break), use tools like Revo Uninstaller or BCUninstaller.
If you need more time to evaluate Kutools: kutools trial reset
Purchase a license – One-time payment (lifetime license ~$39–$99 depending on version) supports ongoing development If you simply want to reinstall Kutools on
You might find old YouTube videos showing a "trial reset" for Kutools version 20 or earlier, but for Kutools 25, 26, or 27 (as of 2025), these methods are obsolete. Most so-called "reset tools" available on sketchy download sites are either fake, outdated, or malware. Purchase a license – One-time payment (lifetime license
When you install Kutools, the installer occasionally pings ExtendOffice’s servers. If the server already logged your machine ID as having completed a trial, resetting locally does nothing—the server still rejects you.