Windows 10: Win7 product key not working for Win10

Hi,

I had Win7 liscence. Unfortually I format my laptop and Install Win10.

But Win7 key is not working on Win10.

Could you please help me?

:)

 

Win7 to Win10 - Product key question

I'm just wondering if the product key I purchased years ago for Win7 will still be valid if I reserve Win10 and install it?

Say for example I want to have Win7 on my main studio PC (as I know all my DAWs and VST plugins work on there perfectly), but also run Win10 on my other machine, would that be possible from the same key? Or would I void the Win7 key as soon as I reserve
and install Win10?

I rely on Win7 for work, so the last thing I want is to void my key for it.

I often reformat my system and I'd hate to do so then find out my Win7 key no longer works...

Thanks in advance!

 

Need product key for Win10 re-load

• Hi, I had to do a factory reset on my Toshiba laptop (multiple problems, black screening, etc.). I downloaded Win10 from MS site and have loaded it back on but product key required. I have no product key because the previous install was free upgrade from
  Win7 a few years ago.

 

Win7 key to reinstall Win10

My PC used to run Win7 when I bought it few years ago, upgraded it to Win10 later as it was free.

I would like to reinstall my windows 10 now but do I use my old Win7 product key to reinstall Win10? or is the key no longer usable at all?