Make your data completely unrecoverable ...
The Windows tool Diskpart overwrites all data on the hard drive with a zero, which is considered a secure deletion method. This applies at least to classic hard drives, i.e. HDDs with magnetic discs.
How to reclaim hard drive storage space using Windows 11 tools Your email has been sent Diving deep into the Settings menus, we can find tools that could reclaim gigabytes of lost hard drive storage ...