Product key installation failed

Sign up to join this community. The best answers are voted up and rise to the top. Stack Overflow for Teams — Collaborate and share knowledge with a private group. Create a free Team What is Teams? Learn more. Windows 10 Setup has failed to validate the product key Ask Question. Asked 6 years, 5 months ago. Active 3 years, 8 months ago.

Viewed 79k times. It keeps telling me: Setup has failed to validate the product key This has happened when clicking "Upgrade" inside the Windows 10 Media Creation Tool and has also happened when running the installer from a flash drive. How can I fix this? Improve this question. Moshe Katz Moshe Katz 3, 3 3 gold badges 20 20 silver badges 39 39 bronze badges. Please read this page if you need to recover files that are lost from Windows Server suddenly. FYI : if you also want to reinstall your OS to fix the Windows product key not working issue, please remember to back up your data at least the important files before the reinstallation.

Facebook Twitter Linkedin Reddit Summary : Windows activation is a necessary process after you installed a new operating system; you must enter the correct product key to enjoy full features of the system. I was clearly sent to the wrong place when typing it from the start bar search line. I'm surprised and a little disappointed that this is not a common test case that the Windows team tests. Granted, it is not the general case. Most people leave their temp folders alone.

However, Microsoft and Windows are not a new company and not a new product. Throughout the years there have been many people who have moved their temp folder locations for many different reasons. There's no reason that this knowledge wasn't captured as a test case long ago and no reason it's not run as a regular test for every upgrade install. Products 72 Special Topics 41 Video Hub Most Active Hubs Microsoft Teams. Security, Compliance and Identity. Microsoft Edge Insider.

Azure Databases. Autonomous Systems. Education Sector. Microsoft Localization. Microsoft PnP. Healthcare and Life Sciences. Internet of Things IoT. In the pop-up window, type the following command and hit Enter to locate the place where you save the media installation files. Type the following command and hit Enter to add the product key to the media installation tool. If you recently installed a third-party antivirus program, it may overprotect your system and trigger some errors like the one discussed here.

In this case, we recommend you disable the real-time protection and check if it works. If not, you can try uninstalling the AV software from your computer. In the Run dialog box, type appwiz. Scroll down the list of installed programs to find the third-party antivirus software, and then right-click it and select Uninstall. Click on Uninstall to confirm the operation. The domain-joined system may block you from upgrading the Windows system.

If this situation applies to you, you can disconnect your system from the domain. Log in to your domain controller via an authorized administrator account. Launch the Active Directory Users and Computers tool, and then select Computers and a list of computer objects will show in the right pane. Right-click the computer object that you want to disconnect and select Delete.

After that, you should disconnect the computer from the domain. Finally, I fixed the error by using solution 4 in the post. Are you still trying to fix it? Here is what you need. Click to tweet.