It is important to note that we already assume that you have a genuine Windows Product Key. If you are using a pirated key, these solutions will not work. Windows identifies generated product keys as of now and blocks them effectively. A software glitch in the GUI of the system can hinder the activation process. This is a very common scenario that was seen in a number of users. A corrupt/wrongly configured user account used by the user to activate Windows can cause this issue as well. There is a fixed number of times you can use a Windows key to activate Windows. If the key has reached the maximum limit to activate Windows, then the user will face the problem under discussion.
Pre-Requisite
Run Windows Activation Commands in Elevated Command Prompt
A software glitch in the GUI system can cause non-activation of Windows. In that case, using the specific commands in an elevated command prompt may solve the problem. These commands will force the activation to avoid any issues. But there are two case scenarios; one when you are activating the standard version and the other when you are activating the evaluation version. Before moving on, do note that the SLMGR /IPK command cannot be used directly with VLSC MAK key or Retail to activate the evaluation edition.
For Non-Evaluation Editions
In place of XXXX-XXXX-XXXXXX-XXXXX enter your Windows product key with dashes.
For Evaluation Editions
Replace XXXXX-XXXXX-XXXXX-XXXXX-XXXXX with your VLSC MAK key. Replace xxxxx-xxxxx-xxxxx-xxxxx-xxxxx with a Retail product key with dashes.
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