How to recover Windows 7 key

Hi, I have a HP Pavilion laptop computer with WIndows 7 HOme premium edition.

I have the product ID, but I missed the activation key - as the key on the sticker on the back of my laptop went invisible.
Please advice how can I get the key of WIndows 7, which I use now.
Thanks in advance,
Vijay Kumar Caroline

Its on the COA sticker at the bottom of your laptop or in the battery compartment. (Remove the battery and you should see him there.

COA certificate of authenticity:

http://www.Microsoft.com/howtotell/content.aspx?PG=COA

??

What is the certificate of authenticity for Windows?

http://Windows.Microsoft.com/en-us/Windows7/what-is-the-Windows-certificate-of-authenticity

Option 1:

If the COA sticker is damaged, you must use the recovery partition to reinstall Windows 7, it will be exempt from the need to use the product key to activate your installation of Windows 7.

Option 2:

If your recovery partition is not available or damaged, you must contact the manufacturer of your computer, and request that a defined recovery disk you can use to reinstall Windows 7. They could practice a small shipping and handling. This will exempt the need to also use the product key.

Option 3:

If neither options 1 or 2 is possible, then you will need to invest in a new license of full version of detail.

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