Windows 10: Window 7 Product ID missing after a failed upgrade to Window 10

Dear All,We are trying to update a Window 7 Pro PC to Window 10 however, during the update, it shows "The system registry contains invalid file paths. Installation cannot proceed. This system image was applied without guaranteeing that drive-letter assignment would match cross computer". Then window roll back to window 7.However, when it complete the roll back process, 1 The window product ID become not available. We restart the system yet still the same.2 The window explorer located at the bottom on screen, at the taskbar, when we click it, it shows "The item you selected is unavailable. It

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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.

 

Windows 10 upgrade problem, no input accepted

I really hate having to come here and ask for help, but I really am stumped. It hurts my geek pride. I have a PC with fairly modern hardware in it. It has a p8p67 pro in it. I have tried upgrading windows 10 on it twice now. Both times I have had the same result.

After windows finishes upgrading it goes to the log in/set up screen. I can't do anything. No keyboard or mouse input is accepted.

I will list some, or hopefully all, of the troubleshooting steps I have tried:

• Move keyboard and mouse to different USB ports.
• Try different keyboard or mouse.
• Restart computer, repeatedly.
• Google for related issues.
• Update Bios, because why not.
• Create boot media and revert to windows 7.

The windows 10 system restore boot media works fine with keyboard and mouse. All USB ports work in windows 7. I don't know what is wrong. I suspect that windows 10 is lacking a driver of some sort, but since the computer accepts no input I have no way of checking for which driver let alone installing it.

Please help me figure this out. If I have to revert back to windows 7 again, I am not going to get it upgraded to windows 10. Thank you in advanced.

 

Windows 10 to be Free Upgrade for Windows 8.1 and Windows 7 Users

In what could be a fundamental shift in how Microsoft monetizes its flagship product, the Windows operating system, the company decided to offer its upcoming Windows 10 as a free upgrade for existing users of Windows 8.1 and Windows 7. This offer will be applicable only for the first year following Windows 10 launch (after which, Windows 8.1 and Windows 7 users will have to pay to upgrade to Windows 10). Windows 10 will see the return of the Start Menu, a productive Desktop environment, and cutting-edge new API features such as DirectX 12.





Source: The Verge