“Format” as a word in computers is very popular, and a well-known word among computer users. We all have done that, especially with USB drives. That said, what people are sometimes afraid of is when ...

If you just mean "factory reset" instead of "format" (you format HDDs, not PCs) then Windows 10 has a built in factory reset function.

1)Use the Windows USB/DVD download tool to get a fresh iso form Microsoft, stick it n usb or dvd, 2) boot off whatever you created before 3) Skip putting in a key for now 4) when windows asks for it, ...