This toughbook arrived in what looked like pristine condition.  I installed the user's applications on it and thought everything was just fine, but shortly thereafter it started intermittently refusing to detect the hard drive.  Thinking this was a hard drive error, I swapped it out with another hard drive and spent hours troubleshooting it - reloading Windows, looking at driver issues, even re-doing the drive enclosure.  Nothing helped. As it is, the product is unusable.I will be returning this and seeking another laptop.