Hi my name is ***** ***** I will be the expert working with you today to help and resolve the problem you have posted.
I am sorry to know that you are facing problem with Skype.
Please let me know that do you use skype on your computer or phone and do you wish to delete your history from skype
open skype and click on tools menu on top...click on options..click on privacy from left side pane
on right you will see an option for keep history.besides that you will also see an option to clear history
click on clear history to clear all conversation history including chat and calls
let me know if you face any difficulty
let me know if you face any difficulty.