1. Right-click on the blue bar on top of the Putty screen and select Change Settings.
2. Click Logging, All Session Output and then Browse.
3. Save the output to either your desktop or a folder with the following file name:
&Y&M&D&T – &H.log
By doing this, once you log on to putty it will capture all the screen and put it in the file and save it to the destination selected.