One of the most useful installation tools in Windows systems is Sysprep or System Preparation Tool. It’s a command line utility that allows you to omit data specific to your computer from the Windows installer and prepare a Windows image for deploying, duplicating, and testing an OS on other computers or networks. However, at times you may end up encountering the Sysprep was not able to validate error on Windows 11. Some common reasons for this issue include installed UWPs, BitLocker or other system encryption being enabled, missing or damaged Spopk.dll file, removal of default Windows programs, etc. Keeping these reasons in mind, we’ve concluded this guide to help you combat the issue and get your System Preparation Tool back to working. Carefully follow each method one by one until you fix the Sysprep was not able to validate error on Windows 11. So what’s the delay for? Let’s get started!

1. Check the Log File. 

When you come across a Sysprep error, it will show the log file’s location through which you can determine the exact reason behind the error. So, start by looking at the log file using the Run tool. This will help you narrow down the list of potential culprits behind the error. Follow the steps below to do it:

2. Reinstall Default Windows Apps. 

Another reason for the Sysprep was not able to validate error includes deleted or missing default Windows apps. To fix this, consider reinstalling the default apps on your Windows 11 PC.  Windows PowerShell lets you reinstall default Windows apps through Get-AppxPackage. Here’s how:

3. Remove Upgrade Registry Key. 

Microsoft doesn’t allow you to run Sysprep on an updated Windows System. So, if you’ve recently upgraded the Windows system, you may be encountering the error.  To resolve the issue, you’ll have to remove the Upgrade registry key from Windows Registry. So, follow the steps below to do it:

4. Uninstall UWP Apps and Packages. 

The UWP or Universal Windows Platform applications and packages are meant to be used on all Windows devices, including PCs, Xbox, tablets, etc. However, incorrect installation of such programs can become the reason behind various issues like Sysprep was not able to validate error.  Uninstalling them will hopefully resolve the matter. Here’s how to do it:

5. Turn Off BitLocker. 

An encrypted system will not allow you to use Sysprep. This means that you won’t be able to run Sysprep if the data protection feature, i.e., BitLocker is enabled. Even if you try, the error message will mention BitLocker and suggest you disable it to fix the issue. Here’s how to do it: Change the letter C according to the drive location where BitLocker is active. This will turn BitLocker off. Check to see if the problem persists.

6. Disable TPM and PTT. 

At times, your system might be detecting BitLocker even when it’s not turned on. The reason behind it is enabled TPM that causes the BitLocker to go into sleep mode or waiting state. You can fix the error by either turning the BitLocker on and off or disable TPM. To do the latter, follow the steps below:

7. Run SFC Scan.  

Running an SFC scan is a quick fix to various common Windows 11 issues. So, if you can’t eliminate the Sysprep was not able to validate error, run the SFC scan to detect and resolve the problem.  Follow the steps below:  This concludes our guide on how to fix Sysprep was not able to validate error on Windows 11. If you have any confusion or query, use the comments section below. We’ll get to you as soon as possible.  If this guide helped you, please share it. 😊