View Drivers Windows 10 Toshiba C850 Drivers For Windows 10. there. For better or for worse, this is how Microsoft has chosen to verify the free upgrade - you will only be able to activate the new OS if you perform an in-place upgrade to Windows 10 from Windows 7 or Windows 8.1. You can not clean install Windows 10 using a Windows 7 or Windows 8.1 product key. In order to begin the upgrade, click the 'Get Windows 10' icon in your system tray and follow the on-screen instructions.
Don't see the icon? You might be able to manually trigger the update. First, make sure you have automatic Windows Updates enabled in control panel, then launch an elevated Command Prompt (Win+X, then choose 'Command Prompt Admin') and enter the following command: wuauclt.exe/updatenow Windows 10 should then begin to download and, provided you had a genuine copy of Windows 7 or Windows 8 to begin with, Windows 10 will install and activate automatically.
The activation should be instant, but there have been teething problems presumably due to the strain being placed on Microsoft's servers - wait a while and Windows 10 will activate itself. Step 3 - the clean install Once you've completed the in-place upgrade to Windows 10, verify that your installation is activated by heading to Settings and then Update & Security. You should see something like this: Your free upgrade has worked and the device you are using is now authorised to use the stated edition of Windows 10. This eligibility is recorded on Microsoft's servers, though we're uncertain at this stage whether the authorisation is tied to hardware IDs or your Microsoft account - we suspect it's a bit of both. Either way, the device is now Windows 10 activated, and that means the new OS can be re-installed on the same hardware at your heart's content. You don't need a key, you simply install the OS and it'll activate whenever you're online. You just need an Internet connection.