how to wipe clean a refurbished windows 10 laptop to return within 15 days

TWS

Hi I bought a refurbished lenovo yoga on 9/24.  What is the last day I can return it? 10/9?  
I am wondering how to protect myself from anyone getting my login into, pins, etc. Will you be wiping it clean at the store before reselling? Should I wipe it clean myself?  If I just reset to windows 10, will the computer be missing anything problematic for getting the return accepted?

JS_MC

Laptops may be returned within 15 days of purchase. You would be correct in noting that we 10/9 would be the last day which you may return it under these guides.

You're welcome to wipe it clean before you return the device. We also wipe the device in our service department before return it to the manufacture or returning it to the sales floor.

Here's more information about our return policy.

https://www.microcenter.com/site/customer-support/return-policy.aspx?ekw=return_policy&rd=1