Get your key again
Type the email you paid with. I'll send you your license key and a new download link that works for 30 days.
That link has expired. Type your email and I'll send you a new one.
Done: your key is free again. A new PC can use it now, and the PCs you still use take their place back by themselves within a day.
Your key and the link go to your inbox, not to this page, so only you can use them.
Paid with an address you can't reach any more? Email me at [email protected] from your new one, with your name and roughly when you bought, and I'll sort it out.