PuTTY stores its session information in the registry, and there’s no function in PuTTY itself to import/export sessions. This makes moving to a new computer a little sticky. I did some googling and whittled down the documentation for storing configuration in a file into a few steps:
1.On the old computer, open up a command prompt (not cygwin), and run:
regedit /ea new.reg HKEY_CURRENT_USER\Software\SimonTatham\PuTTY
2.Copy new.reg onto the new computer
3.On the new computer, open up a command prompt (not cygwin), and run:
regedit /s new.reg
Done!