Right-click, select Record and Playback and Delete Process Recordings.
Here's the help topic:
Here's how to configure the number of recordings to keep:
Thanks Jasmin for your post. As I mentioned already I knew the answer you mentioned.
Thanks Scott. Let me check your answer.
Is there any page in the admin console where I can get rid of old recording memory at a one shot ?
Sorry about that.
There is no admnui settings to delete the recordings.
You could delete them from the file system. They are usually stored in an audit folder. (C:\Adobe\Adobe LiveCycle ES2\jboss\server\lc_turnkey\svcnative\DocumentStorage\audit).