Hi there
I purchased MakeMKV back in 2020 and I just brought a new laptop and need my license key again. Is there anyway I can get my license key back and reactivate the app again
License Key
Re: License Key
Contact support@makemkv.com and give Mike the information. He's the only one with keys 
MakeMKV Frequently Asked Questions
FAQ about BETA and PERMANENT keys.
How to aid in finding the answer to your problem: Activating Debug Logging
FAQ about BETA and PERMANENT keys.
How to aid in finding the answer to your problem: Activating Debug Logging
Re: License Key
Your original purchase was fulfilled via email. If you still have the same email you were using in 2020, I would guess that searching 'MakeMKV' in your email would find those original purchase emails.
If not, then I agree with Woodstock.
If not, then I agree with Woodstock.