I have a computer I recently built and installed Windows XP from a OEM disk I purchased. This replaced one I took out of service but intend to return to service shortly. Recently my new computer crashed and I had to us the XP Install disk to do a repair. I inadvertently used the disk from the computer taken out of service. Subsequently I activated the new computer using the product number from the computer which is not currently in service. Do I need to re-repair my new computer and activate the original product number?