Windows product key

What is the best tool to retrieve windows key?

I have a computer I need to reinstall and the sticker is worn out.

I know there are a bunch of tools out there, what are your suggestions?
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alonig1Asked:
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JohnBusiness Consultant (Owner)Commented:
For Windows 7 and below, use Recover Keys (I use this) or Magic Jelllybean. Windows 8 and 10 are different, but the two tools above will work for Windows 7 and below.

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Lee W, MVPTechnology and Business Process AdvisorCommented:
If you insist that free is your only answer, then I'd suggest: https://www.magicaljellybean.com/keyfinder/

If you want a great tech tool, buy yourself a copy of System Information for Windows, Technician edition.
homerslmpsonCommented:
Everyone suggests Magic Jellybean Keyfinder and Belarc Advisor.
I use Belarc only as a last resort because it takes a few minutes to install/run and it's "technically" not free for commercial use.
On the plus side, it gives you the last few digits where other programs like Magic Jellybean sometimes come up empty (this happens with Microsoft E-Open/Volume Licensing a lot).
JohnBusiness Consultant (Owner)Commented:
@alonig1  - Thanks and I was happy to help.
Maidine FouadEngineerCommented:
I suggest ProduKey From Nirsoft, Its Free and does its job

 http://www.nirsoft.net/utils/product_cd_key_viewer.html
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