How to clean hdd 100%

[samuy]

How to clean my HDD 100% including my Windows 8.1. I dont want to do any backup either. Then , i will start installing Windows 10 to my SSD. Please teach me how to do it. Thanks

 

[jsmithepa]

When u run the installer, just tell it to remove ALL partitions.

 

[rhoban]

At the partitions screen, just delete all the partitions and create them anew.