Re-Installing an OS

[LLamaGames]

Alright, so I want to know how to format a hard drive then Re-Install Windows 10 on my PC. Lately, my PC has begun to get really, really slow and there are a lot of files and programs that are no use to me. It's easier for me to remove the very few things I use/need on a USB and just format and Re-Install everything else. 

 

         Thanks In Advance

[vanished]

1. Download the Windows 10 installer from Microsoft
2. Put on a USB stick
3. Boot that and use it to Reinstall windows. As part of that process it will format you existing partitions.  You will lose all data on the hard drive when this happens.

[LLamaGames]

44 minutes ago, Ryan_Vickers said:

1. Download the Windows 10 installer from Microsoft
2. Put on a USB stick
3. Boot that and use it to Reinstall windows. As part of that process it will format you existing partitions.  You will lose all data on the hard drive when this happens.

 

Thank You So Much. I hope this works