How to Copy Large “Show Tech-support” from Cisco Device Using Putty ?

How to copy a large "Show Tech-support" output from a Cisco device using Putty. This is useful in case you are unable to copy the entire content of the output in one go.
How to copy a large "Show Tech-support" output from a Cisco device using Putty. This is useful in case you are unable to copy the entire content of the output in one go.