Please refer to this link - https://www.mathworks.com/matlabcentral/answers/106141-why-am-i-continuously-prompted-to-activate-when-i-try-to-launch-matlab .It details a solution to your issue.
unable to launch matlab
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Every time when i try to launch matlab application, 'matlab activation client ' is poped-up ,and even after activating it , when i give next try to launch application, again it launches matlab activation client.
So is there any way to tackle this problem?
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