You can re-activate a Win10 Home with a Pro license, but not the other way around.As all people cannt buy some premium things like Windows 10 Product keys. Make sure you get the correct Win 10 license. The 2 scrap-PC's together cost me less than half of a new Windows 10 Pro license. I purchased a couple of (not-working) Core2Duo PC's with a Win7 license just for that purpose some years ago. It may actually be cheaper, depending on were you live and what is available, to buy a very cheap second-hand PC from someone that has a Win7 or Win8 license key that you can re-use. In that case you will have to buy a new Windows 10 license.
If you never used a Microsoft account it is your responsibility to make sure you have retained the key. If it doesn't re-activate by itself (sometimes Windows thinks it isn't the same computer that you re-installed) the Microsoft helpdesk can help in that case. If you use a Microsoft account the key is stored in that account and will automatically be re-applied when you try to activate using that same Microsoft account. I'm currently running an unactivated Windows, which works fine (for how long?), but since I use my PC for work I'm worried about this coming back to bite me.ĭo I have any chance of recovering my license key key? Does Microsoft store the license key used by a user somewhere on their servers, and they can tell it's the same PC and can reactivate me?ĭo you login with a Microsoft account or a local account? I backed up my personal files, but never thought to back up the license key (won't make that mistake again). The issue is, I don't know what my old license key was. In the end I had no choice but to reinstall from scratch. I tried the advanced startup options to refresh/reset Windows, they didn't work.
I think I had to click "Reactivate" but it worked fine.Ī few days ago Windows 10 stopped booting, it kept blue screening at boot. Last year I built a new PC, and simply switched the SSD from my old desktop to the new one, and all was good.When I did that, I activated Windows 10 using the key written on a label on the desktop. A couple of years ago I upgraded to Windows 10 Pro using the free 7-to-10 upgrade offer.Bought a used PC in 2012, came with Windows 7 Pro already on it.I didn't buy the Windows 10 license, it was imported from my previous PC.
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