Toshiba Tecra M9(PTM91, PTM90) HDD Protection Utility 18.104.22.168 Windows XP. This utility uses the acceleration sensor built in the computer, HDD Protection detects vibration, shocks, and automatically moves the HDD (Hard Disk Drive) head to the safe position to reduce the risk of damage that could be caused to the disk by head-to-disk contact.. Do use the latest driver version available, it will help you use the facilities of your hardware easier and better. An old version can create hardware conflicts and errors in function. Try to stay updated with your drivers monthly or sometimes weekly. Chose wisely the specific drivers: motherboards driver, bios, graphic cards drivers, modem drivers and so on. Chose the right driver for your hardware and try to make backups of your system every time you want to make a change.