Windows 7: Constant reactivation

Hello mates I am in dire need of help!

I am having a ridiculous issue with Windows 7 prompting me to reactivate my product key. It is now a daily occurrence even after successfully reactivating over the phone (online does not work).

It says it is most likely a hardware change that is prompting this but I am running a ASUS laptop and have never changed any of hardware.

I purchased this valid Windows 7 Home Premium 32 and 64 bit upgrade from Vista about a week and half ago. Within a week of installing it prompted me to reactivate, so I did. Three days later it prompted again. I reactivated it last evening and now, almost 24 hours since, It is asking me AGAIN! This time the days remaining till activation is down from three to two...

I am in the process of contacting Windows because not only is having to reactivate over the phone everyday ridiculous, but obviously a valid purchased copy should not be doing this.

Just wondering if any of you have experienced this issue yet and if there are any solutions?

Thank you very much for any help.



(I am running 64 bit)

BT

Try this tool Genuine Microsoft Software,if it doesn't solve your problem too,you have to contact with manufacturer support or MS support

Note that if your laptop shipped with Windows 7, don't call MS - you have to call Asus.

Nope it shipped with Vista. Just upgraded.

Thanks Flavius I will try this if it prompts me again!