Crystal Disk Info Portable is a fully portable version of a compact, free disk information utility. It displays a lot of information, including SMART data for compatible disks, firmware version, RPM, power on count and hours, and even advanced options such as Automatic Acoustic Management/Advanced Power Management (AAM/APM) settings.
Crystal Disk Info's properties-like interface opened with our selected drive's name, model number, and capacity in gigabytes prominently displayed. A large, color-coded Health Status display indicated our PC's health was Good, while a similar window below it displayed the drive's temperature in Celsius, the cool blue color indicating at a glance that all was well. A ribbon along the top of the interface displayed all our system's disk drives with their color-coded status, temperature, and drive letter. Clicking a small arrow in the corner of these entries called up that drive's information in the main view. We clicked the Graph button on the Function menu, which opened an interesting feature that creates graphs displaying disk information via a tool called Flot. A drop-down list let us select from nine Actual (Raw) Value entries like Reallocated Sectors Count and more than 30 Normalized (Current) Value entries like Write Error Rate. The program is skinnable, offers auto detection and debugging options, and can open the Device Manager and Disk Manager from its Function Menu.
We like Crystal Disk Info as a program. However, there's a serious issue with the Help file, which is in the CHM format and would not open in either Windows 7 Home Premium or Ultimate because of a known (notorious, actually) issue. It's Microsoft's fault, but it's up to developers to make sure their programs work properly. You can search online for a fix, which may help you in your individual circumstances, or you can go to the Crystal Dew Web site and view the manual online. What you cannot do is click Help on the interface and open the Help file, and we can't recommend Crystal Disk Info Portable until you can.