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Usually, you can access Disk Management on Windows XP by following the guide: right click My Computer on the desktop of Windows XP > click Management > click Disk Management.Īfter entering the Disk Management on Windows XP, you can see all disks on your computer, which usually show Disk 0, Disk 1…

It's bad in any case.Like all other Windows OS, Windows XP has built-in Disk Management which helps perform many tasks. I haven't used HD Tune Pro so I don't know if it's looking at some internally available map of sectors or is physically looking at each sector from the OS point of view. If you see these, take action to protect your data now.

Take a look at your Event Viewer, under Windows Logs, then System, and check for a bunch of "disk" events. If the drive has remapped all of its sectors and is getting to the point where it tells the OS about sectors, you REALLY should stop trusting the drive and get your data off of it now. If the drive develops a bad sector, it will internally remap that sector with a spare, and increase the Reallocated Sector Count you are seeing from the SMART data.Ī couple of these are no big deal but if many of these develop then you should stop trusting the drive.Īnyway this is done without the OS's knowledge, unless the OS checks SMART data, so these errors don't even make it to Windows. Modern hard drives for a while do sector sparing and transparent remapping. Generally to monitor for disk read/write errors if you aren't doing fault-tolerant stuff, pay attention to the Event Viewer - failed I/O generates events. If one of the disks in the set encountered errors on I/O, Windows would mark the disk "Unreadable." I believe the usual situation where you'd see a disk go to "Unreadable" instead of "Healthy" is if it was configured as dynamic and part of a fault-tolerant set. But if this disk is your system partition or has your page file, your system will likely freeze or bluescreen first. So disk errors will not cause the disk to go to "Unreadable" status, unless Windows could not talk to the drive at all but hasn't been told it's been removed, in which case it will go to "Failed" status. I haven't really played with Windows dynamic disks a lot, but you won't see status messages other than "Online" and "Healthy" very much unless you are doing things like fault-tolerant volumes.