f you have a Hard Disk Capacity of greater than 125GB and have been experiencing hard disk errors than Microsoft has a tool to protect your Hard disk from crashing during Hibernation and Standby Mode.If you have symptoms like

* Your computer may restart instead of resuming from hibernation.
* You may experience hard disk corruption when your computer enters either standby or hibernation.
* You may experience hard disk corruption when Windows XP writes a memory dump file as a result of an unrecoverable Windows error (or Stop error) (source)


How to Protect your Hard disk from Corruption:

* First install the latest Service Pack (SP2) for Windows XP.
* Browse your IE or Firefox to Support.Microsoft.com/search
* Search for the file KB331958.
* Download the Q331958_WXP_SP2_x86_ENU.exe package now.
* Install the Microsoft Patch and restart your computer.

There is a comparable version for Windows 64 bit version users on the Microsoft support site.