Task ValidationTaskDeadline: The task image is corrupt or has been tampered with.Task validation task: the task image is corrupt or has been tampered with.Task image is corrupt or has been tampered with.
The error seems to occur solely on Windows 7 computers after a failed activation or failed upgrade to Windows 10. After doing some investigations on the issue, it turns out that the problem is caused by the Windows Activation Technologies folder. It seems like the ValidationTaskDeadline task is checking if the user is running a genuine copy of Windows 7. In other words, it runs the ValidationTaskDeadline in order to confirm if the Windows 7 copy is genuine, preparing the ground for a future upgrade to a newer Windows version. Note: Keep in mind that the Windows Activation Technologies folder does not represent the ValidationTaskDeadline task alone – it’s a collection of activation and validation components, as well as some fairly aggressive anti-piracy features. Although we were able to identify false positives, the Validation Task Deadline error is almost always caused by a pirated copy of Windows 7. But we did manage to identify some occurrences where users running on legitimate copies of Windows 7 got stuck with this error after the update validation process failed for various reasons. If you’re currently struggling with this issue and you own a legitimate copy of Windows, we have a method that seemed to be successful in helping other users that were in a similar situation as you. Please follow the steps below in perfect order until you manage to resolve your issue. Note: If you get this error on a pirated Windows copy, the steps below will not resolve your issue. In this case, the only way to remove the error and use Task Manager again is to go legit.
How to fix the ValidationTaskDeadline error
The most popular fix for this particular issue is to re-import the two validation tasks (those that are causing the problem). Start by following the steps below in order to extract ValidationTask and ValidationTaskDeadline, then re-import them into Task Scheduler: If you’re still having problems related to the Validation Task Deadline task, consider using a System Restore point to revert your system to a previous point (preferably before the activation process failed). If you don’t know how to do this, follow our in-depth article (here) about creating and using System Restore points.
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