XP re-registration / re-installation

[zaax]

Over an 18 months period I rebuild my computer, new hard drive one month, new PSU a few months later and so on. I’m about to change my motherboard, processor etc.

I understand that XP does a calculations when first installed and works out a number and if the calculations don’t add up XP requires you to ring M$ to explain why.

How many times can you re-install XP on new machines before you have to ring them?

 

[sy2]

I couldn't tell you the exact number, but as long as you bought an original copy at one point and have a valid reason for needing another key you shouldn't have a problem obtaining one.

 

[zaax]

Many thanks