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Compaq Presario SR1740CF-ER938AA Product Keycode Not Valid

I reload Compaq Presario SR1740CF-ER938AA with manufacturer XP CD SP2 and upon prompting, I enter the product keycode found on the sticker which was pasted on the PC. Then an error message appear ''Invalid keycode''.

I check the keycode number many times and what i key in tally with the product keycode found on the PC.

What should i do in order to proceed with the XP installation ?

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You need to call to a number in your country or enter to the web page when the serial number is asked when your are installing windows, you shold see an option to activate your copy of windows, you call or enter the webpage, wirte the number in your PC and then you'll get a valid serial number for your original windows XP; you'll have the option to register your copy of windows, but it's not necessary.

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Posted on Jul 25, 2009

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Is that the original cd came off on the box when you buy it. If yes it should be ok.. If not the the cd is wrong..there is no way you can use the cd key anymore. you need a new OE with cd key.

Posted on Jul 24, 2009

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