For an ordinary PC user there isn’t much need to know read and write speed of hard drive, but sometimes it is better to know them to know working condition of hard drive. Some Antivirus program’s processes keep running in background by reading and writing some data to the drive. Drive Speedometer is free utility helps to monitor read and write speeds of hard drive by showing them in the system tray.
If hard drive’s speeds keeps dropping it is an indicator that your hard disk is running slower and slower then its better to backup your data and replace it with a new drive.
Read Acronis Drive Monitor determines your Hard drive’s Health
This app uses Windows Performance Counters to display read and write speeds of hard drive.
Drive Speedometer is freeware, works in Windows XP/Vista/7.