I don't think it's "catching". I think it's "caching".
Anyway, that isn't a Windows XP thing. It's a BIOS thing. So press the magic key at boot to go into the BIOS setup and see if you can find that options.
What the magic key is depends on the BIOS. Could be escape or del or F2 or F10 or another, even a combination. It should be mentioned in the user documentation, on the screen or in the manufacturers help pages for your model. If you really can't find it, post maker and model here to see if anybody knows.
Kees
Every time my Windows XP computer crashes, the blue screen says "disable bios memory options such as catching or shadowing." Can someone tell me how to eliminate catching and shadowing? Thanks.

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