I have a Toshiba labtop that has a corrupt start up file. After accessing the hard drive reformatting the entire c drive it will only boot from the USB that has the active@boot disk how can I reinstall windows?
Since you killed everything on the disk, you need to install Windows. You need a USB disk with windows installation on it. They were on main disk and are not going to magically appear.
Since you killed everything on the disk, you need to install Windows. You need a USB disk with windows installation on it. They were on main disk and are not going to magically appear.