Windows7 ultimate 64bit activation issue after motherboard replacement

I had a genuine Windows Ultimate 64 bit windows activation key which was working fine with my hp pavilion dv4 laptop but after replacement of motherboard the BIOS showing compaq CQ41 laptop and suddenly the activation key is not working anymore showing that, there is a hardware change and you have to enter a fresh activation id.

Hence requesting to provide me a genuine Windows 7 Ultimate permanent activation key(64bit) so that i can activate activate the window again like before.

please check the battery department for a backup key... is it for Ultimate

notes
if the new motherboard was not Ultimate then thats why your getting the message
you will have to install a lower version of W7
also unlikely that the original comp came with Ultimate.....

post the Mgadiag results from here
Windows Genuine and Activation Issue Posting Instructions

NO-ONE is going to give you an Ultimate key

@SIW2
Thanks for the reply
1. I contacted microsoft they called me and asked me to run slui 4 but unfortunately no telephone number is showing only they are asking
A. Buy a new product key
B. Type a new activation key

Hence they couldn't help me as the support for windows 7 has been not any more.

2. The motherboard is perfectly ok everything is showing same in BIOS except
The model number of laptop showing different instead of hp pavilion dv4 it's showing compaq cq 41., That's why windows activation asking for a new key as it can't recognise the laptop model

3. A new activation retail key for windows 7 ultimate 64 bit will serve the purpose. So please provide the same to me.

- - - Updated - - -

Thanks for the reply
1. I contacted microsoft they called me and asked me to run slui 4 but unfortunately no telephone number is showing only they are asking
A. Buy a new product key
B. Type a new activation key

Hence they couldn't help me as the support for windows 7 has been not any more.

2. The motherboard is perfectly ok everything is showing same in BIOS except
The model number of laptop showing different instead of hp pavilion dv4 it's showing compaq cq 41., That's why windows activation asking for a new key as it can't recognise the laptop model

3. A new activation retail key for windows 7 ultimate 64 bit will serve the purpose. So please provide the same to me.

Hello @SIW2

As per your instruction i have tried to find SLIC and here is the details . Please guide me what to do now?
Can you provide me a genuine Permanent activation key for Windows 7 ultimate 64 bit ?
Please help me.

its definately a W7 machine

but as i said before, and unless i can see the MGAdiag report, i dont think its an Ultimate version......i cant tell you which version likely Home Premium

1.Motherboard has been changed

2.BIOS showing different laptop name

3.After power on my laptop instead of hp logo , compaq logo is showing.

4. If i reinstall Windows 7 it will show the same thing, moreover i tried system restore but the result is same

Hence please provide me a genuine permanent activation key for windows7 ultimate 64 bit, i think it will serve my purpose. Please help me