The End of Microsoft supporting XP means that Microsoft will not be supplying any more New
Updates for XP. However, Any current updates that are already available, will be available in Stand Alone downloads. SP 1, 2, and 3 and .Net Framework etc.
will backup your entire C:
drive, updates an all. Microsoft Corporation
However, if your HDD fails, or you need to format, you need to Reinstall Windows from the XP CD, then start the Microsoft Backup
program and choose Restore
to restore your backup that is saved on a different drive.
You can slipstream your XP CD with SP 3, Updates, SATA driver, Windows Drivers and IE8 using nLite.
Or you can clone
your HDD to another HDD. If your C: HDD fails, or you need to format, you can swap your C: drive with the cloned drive and be back in business.