Sadly, Matlab repeatedly prompts you for activation because of limited user permissions which administrator credentials activate regularly. Since the license file is inaccessible but approaching it is quite necessary in order to sort out the issue. However, individual licenses are present in the specific folders containing your login name. Therefore, everything that relates to license is available in the licenses folder available in the Matlab installation directory. Simply check the related section of your license type and OS in order to reach the directory containing your license files. By the end, if you still perceive empty license folders then solve the problem through another way around. In other words, the license center will be your next go-to place since you need to activate Matlab manually.
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