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I purchased a Dell computer through dell.com in August 2009. It qualifies for the Windows Vista to Windows 7 free upgrade. I don't have the laptop on hand (it was a gift), though I copied down the service tag which is required to schedule an upgrade. Now Dell is telling me it does not recognize the service tag. In order to disqualify a transcription error, I'd like to know if there is any way to find my service tag using the Dell website and my purchase order number or serial number.
I got the same message when I went to dell.com and entered my service tag. It turned out that dell.com did not recognise my tag, but http://dell.nl/ did. Might be worth chechking for your country,
– Hennes – 2016-07-11T12:51:28.103