Windows key updating tool
Visit the following page to download the latest version of OEM Product Key Tool.
Note that you might get “Unable to open MSDM table!
This did cause me a little confusion because I was never prompted to enter a key; I suspect Setup was attempting to autoactivate using the Windows 7 key or was looking for a Windows 10 OEM license in the BIOS.
I opened an admin command prompt, browsed to Thank you for your interest in this question.
That is, computers pre-installed with Windows 8, Windows 8.1, and Windows 10 don’t display product key information or Certificate of Authenticity (COA) sticker on the backup of the computer or in the battery bay.
Instead, PC manufactures have started embedding product key into the BIOS or EFI, and it can be seen by entering the BIOS/EFI of your computer.
I'm typing this on my other machine while watching the installer run.) I ran Disk Cleanup on the drive, which cleared out the Temp folder and the downloaded/unpacked installer files (in Had same issue - below steps helped me to finish successful upgrade from Windows 8.1 to 10 worked 1.
Run disk cleanup utility https://support.microsoft.com/en-us/help/17421/windows-free-up-drive-space 2. Then (it can take a long time to execute): Press Windows key X Click Command Prompt (Admin) Type each command at the prompt then hit enter after each scan is complete) Dism /Online /Cleanup-Image /Check Health Dism /Online /Cleanup-Image /Scan Health Dism /Online /Cleanup-Image /Restore Health which indicated to me that it was in fact a license key issue.
This time around, we have another excellent utility to retrieve Windows product key from BIOS or EFI.Because it has attracted low-quality or spam answers that had to be removed, posting an answer now requires 10 reputation on this site (the association bonus does not count).Would you like to answer one of these unanswered questions instead?Using this tool you can easily create media to reinstall or do a clean installation of either the 32 or 64-bit version.To create the installation media you will need either a blank DVD or USB drive with at least 4 GB of space.