Do you have a legal OEM version of Windows?
What a Certificate of Authenticity (COA) should look like
The Official Microsoft "How to Tell" Site
Some OEM manufacturers (Dell, Compaq, HP, etc etc) do not supply a CD, or supply their own system recovery/restore CD's, but you should still get a COA (Certificate of Authenticity). Click here for more info
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XP Home OEM | XP Media Center (Only available as OEM) |
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XP Professional OEM | XP Professional X64 OEM (Only available as OEM) |
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Vista OEM (Colour may vary) | Vista 64 bit OEM (Colour may vary) |
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