You come across this error message the next time you reboot because Windows XP has encountered a problem which it feels is serious and creates a dump file. To stop this error from popping up every now and then, just follow the steps given below: Click on "Start" menu and navigate to "My Computer". Right click on "My Computer" and click on "Properties" In the "System Properties" window that opens, under the "Advanced" tab, within the "Performance" section, click on "Settings" button. In the "Performace Options" window, under the "Advanced" tab, in "Virtual memory" section, click on "Change" button. In the "Virtual memory" window, select the option "No paging file" and click on "Set". Now here would like to mention, that we cannot just leave the setting as "No paging file" and move out. The reason being that the page file is used by windows as a substitue for RAM when your system is running out of it (you must have observed windows giving you the message to increase the paging size when your system is low on virtual memory. Check the same here). So in the next step we turn it back again. Now click the second option, "System Managed Size" and click on "OK" to close the window. Once you close all the open windows, you will be prompted to restart the PC. Click "OK" to reboot and the changes that you have made, would not allow the "System has recovered from a serious error" message to pop up again.
You must have encountered this error at startup sometime or the other: Windows XP stating, "The system has recovered from a serious error. A log of this error has been created. Please tell Microsoft about this problem."