Windows 10: Installation window 10 from window 7 pro

I tried several times to install window 10 i have window 7 pro without success the error is 0xC1900101- 0x30018, failed in the first boot

:)

 

Installing Windows 10 using Windows 7 key

Nope, you need to install Windows 10 first and make sure the Windows 7 key is transferred to your Windows account after you've installed Windows 10 (not quite sure how that works). I missed the last step and I could not activate Windows 10 after a re-install... Microsoft seem to have done everything they can to make it a PITA. Also, it's technically too late to do this now anyhow, as the upgrade offer has expired. But KMSPico works quite well...

As for getting rid of Windows, delete the Windows folder.

 

Clean Windows 10 (?PRO?) install

I have bought a legit "Windows 10 Pro" key of a key website. It is legit since i'm currently using it for over a year now. I currently have Windows 10 Pro installed on my PC and I want to do a clean install. I just can't find the windows 10 Pro download in the tool. But if i could use a windows 10 pro key with a normal windows 10 install, I'll be good to go.

 

Clean Windows 10 (?PRO?) install

Where exactly did you get this "windows pro" key from? If it's off eBay or something, then perhaps you've been sold a dud key. Also, it's not clear if you mean you bought windows 10 pro or an earlier version of windows as there's no such thing as "windows pro".

Do you have an Windows 7 or 8.1? If so, install that, download the ISO with the media creation tool and burn it to disc. Then run it as an upgrade. After that, the components hash of your PC will give you a digital entitlement for a clean install, so just bought off that disc, wipe the partitions and install it clean. It will auto activate over the internet once installed.