Some people have reported problems when they install Windows XP Service Pack 2. One such problem is ending up with a dead machine that you are unable to recover. The system can not be recovered using the Recovery Console and Safe Mode is unsuccessful as well.

The likely cause of this problem is your BIOS which doesn’t have the microcode level that is required by service pack 2. The resolution - upgrade your BIOS. You can visit your manufacturer’s Web site to determine exactly how to proceed with a BIOS upgrade.

Remember that a service pack includes tons of changes so before you install it, read as much as you can about it. Of course, in an ideal world, you would be installing the service pack on a clean machine. However, in the real world, this is not the case, and you are bound to run into problems. Find out as much as you can and be sure to install it in a test environment first. This way you have a chance to identify and resolve any issues. Finally, remember to backup your systems before installing SP2 in the production environment.