How to remove all partitions from a hard drive at once in Windows 10? 

This video shows provides a quick and easy way to delete all hard drive partitions in one go in Windows 10.
In Disk Management, deleting a partition is a straightforward process, but it involves deleting each partition individually. If you prefer to remove all hard drive partitions at once, there's a convenient solution - a free tool called DiskGenius Free. You can get the tool here: www.diskgenius...
Here are steps to delete all hard drive partitions at once:
Step 1. Launch DiskGenius Free Edition, locate and select the hard drive from which you will be deleting partition.
Step 2. Right-click the hard drive and choose “Delete All Partitions” from the context menu.
Note: deleting partitions will erase all data on them, please make sure you choose the correct hard drive.
Step 3. Click “Yes” to confirm the deletion.
Step 4. Click “Save All” to apply changes.