If you find it unnecessary, you can delete this saved data to avoid the second person seeing it or reduce the load on memory for the device. Here’s how to do it:
Step 1: Go to http://www.Youtube.com > select Login > enter your account and password.
Step 2: Click on the History line in the list panel on the left side> click Search History.
Step 3: Here you can delete individual searches one by one by selecting the 3 dots on the right > select Delete from search history.
If you want to clear all > select Clear all search history > Final confirmation Clear all search history .
Step 1: Open the Youtube app.
Step 2: Click on the 3 dots in the top right corner > Select Settings item.
Step 3 : Select Security > Click Clear search history.
Step 4: Click OK for final confirmation.
This simple job can be done in seconds, safely, and effectively.