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BIOS Corrupt? - Serial number missing

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Hi All,

Thank you for your time in reading. I've spent hours and hours this morning trying to resolve this myself but I'm getting nowhere.

I turned on my Compaq (HP) Presario CQ61 this morning to be faced with a messaged telling me my Windows 7 software isn't genuine. I tried to activate online but it failed giving me an error message and asked me to contact HP. They won't help me unless I purchase extended warranty. I spoke with a representative for Microsoft activations and they have told me I need to contact HP as it's a hardware related fault.

I've discovered that the serial number and product/part number is invalid in BIOS. Instead of it displaying my serial number and product number it shows only as zero's. When I power on the laptop, I'm displayed with a message at POST stating Invalid Serial Number.

I've tried to flash the BIOS with the latest version although this hasn't helped. It flashed successfully but the numbers are still zero's.

I believe the software used to edit these strings is known as DMI editors? They are all DOS programs though that I can't get to run within my 64 bit version of Windows 7 and I don't even know if I've downloaded the right one?

Any support or advice would be much appreciated.

Thanks again

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