Unknown Error 0X87FF054F after installing Win XP SP2

I installed Windows XP SP2 and put it on auto update as usual. Everyday it installed updates normally but then I noticed some problems with I system. I thought this could be due to automatic installation and so I put automatic updates to offline mode. And I started receiving error “0X87FF054F”. I Google a lot for this but could not find any reason and the solution as well for this error.
I am using Windows XP, as mentioned with 512 RAM and 2.4 GB Processor. Anyone knows solution for this error then please tell me.
