Windows 10: lost windows activation key

I bought 2 Windows keys from Microsoft more than a decade ago and I have transferred the keys as I have moved from machine to machine and version to version. I got a MacBook pro and I am running a downloaded version of Windows 10. I thought I had stored the keys in a text file in cloud storage but I can't find the keys file now and I would like to activate this copy as its my main Windows platform.I have looked on the MS site and my account, I can't find out how to "recover" these keys.Any help would be greatly appreciated

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Lost Windows Activation Product Key

I recently lost my Windows 10 pro Activation product key and now Microsoft wants me to activate my windows but now i dnt have any product key please suggest me the way i dnt want to lost my all data...

 

Lost Windows Key

Hi Saravanan,

I would suggest you to follow the steps below and check if it helps.

To start Product Activation:

• Go to Start, then select Settings, choose
  Update & security, and then select Activation.
• If your device is not activated, the Activate by phone option will be available.

Hope this information is helpful.

 

lost windows activation key, need new free os thats just as easy as windows

So Windows is already installed and refuses to activiate or are you not getting through the install because you don't have to key to put in the boxes?

If you were never prompted for a key, the key is embeded in the install disk. You can retrieve the key via the registry.

If the activation wizard is being bitchy as usual, it gives you the phone number you have to call. Call them up, explain your situation, and they'll give you what you need to make it go away.