Question : How do i stop computer from crashing with code Ox0000001A

computer with Vista OS crashes and refers to memory management with code
stop1 Ox0000001A

Answer : How do i stop computer from crashing with code Ox0000001A

So you have a crashed server?
In that case you are going to need to seize the FSMO roles as per: http://support.microsoft.com/kb/255504

If you haven't already done so you will also need to perform a METADATA cleanup if the failed DC as per: http://support.microsoft.com/kb/216498