HDD Observer can detect a lot of hard drives troubles and give a solution for them: Monitor hard drives health, performance and temperature. Monitor hard drives activity and show it in a system tray icon. Check file system fragmentation and registry fragmentation. Defragment file system and registry. Automatically and real-time find and remove un-needed files and registry values. Windows XP/2003/Vista compatible. Native 64 bit support for best performance. Low memory usageHDD Observer is not only a high technologic product - it is one of the most intelligent soft for hard drives monitoring. And this is because it has some unique technologies implemented by us especially for this program. One of them is SmartBehavior - a unique behavior technology implemented in monitoring tools. For example, if HDD temperature is near its critical value then HDD Observer begins to check it more frequently to exactly detect the time when the temperature will reach it's critical value. Evident - if critical value is reached, then HDD Observer will check HDDs with a lower frequency to release any system resources.