Windows 10: Lost key, can't downgrade Windows 10 Pro to Home

Hi,My pc died after power switch during updating the system.I managed to reinstall system, but by mistake I installed Win ProI don't have key for that, so watermark is still on my screen, sadly I lost it with super old pc box.When I'm getting to activation of my key there's poup that says that "System found key of windwos Home not Pro, change system and it will all work" Sadly, when trying to downgrade system it asks me for the key.I was trying different methotds through PowerShell or any other outside apps to find my key in BIOS but there's nothing.I'm not able to find person who sold me PC i

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Downgrade from Windows 10 Pro to Home Using 7 Key

I've been given a PC with WIndows 10 Pro. The Windows 10 Pro appears to be a trial version. If I downgrade to Windows 10 Home using the following tutorial, can I use a Windows 7 Home Product key for the final "Change product key" step? Downgrade from Windows 10 Pro to Windows 10 Home

 

Usable Product Keys for Enterprise downgrade to Pro


Hello wetenhr, and welcome to Ten Forums.

You could downgrade to Windows 10 Pro using the generic key under step 1. You'll still be using the same version that you currently have installed, but you will be able to update to the latest version and build via Windows Update.

When it's finished downgrading, you could try to activate Windows 10 Pro with your Windows 7 Pro or Ultimate key. If unsuccessful, you may need to purchase a Windows 10 Pro key from the Store to use to activate with.

 

Downgrade Windows 10 enterprise to Pro

Hi Sumit,

Thanks for your quick response and help, But I was told that if I inserted the Windows 10 Pro product key into the activation section it will be downgraded automatically like the following steps:

1. Open the Settings app and click Update & Security.
2. Open Activation and click Change product key.
3. Enter your Windows 10 Professional product key and click Next.
4. Restart the computer after the new product key is activated.

Can this be helpful ?