Windows activation needed cause of hardware change even i didn't change any hardware.

[Tim Yanmaz]

I firstly reset my laptop than i have cleaned my fans. After using my laptop for an hour i got a notification to activate windows. I've tried to troubleshoot but it says "Its appear that the hardware has changed. Please check if you are connected to the internet and try again. Error code: 0xc0ea000a".I also did sfc/scannow and used DISM but it didn't help.Can anyone help me with this issue?

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