O&O DiskErase Professional

Advanced computer users know that completely erasing data from a traditional hard drive or SDD usually requires the help of specialized applications, usually known as shredders or erasure tools.

These types of programs offer the best possible ways to ensure that your data and privacy are not compromised, especially if you are selling your computer or laptop, etc.

Familiarize yourself with O&O DiskErase, a competent and easy-to-use application that allows you to fully destroy data stored on your hard drive or SDD partitions so that it cannot be recovered. This application is capable of completely destroying the contents of your entire computer with just a few mouse clicks.

Before that - a small warning: once you fully commit to the process (which also includes restarting your computer), you will not be able to recover your data even with specialized software.
Another important thing is that this application is not designed to help you shred individual files or specific folders. For that given purpose, you need to use other type of tools