Create installation media for Windows 8.1.
FromMicrosoft:Create installation media for Windows 8.1 using either a USB flash drive or a DVD. Download (1.41MB)
Create a copy of your Windows 7 ISO file on removable media.
Prepare USB drive to be a bootable replacement for the Windows optical drive.
Format volume to FAT32.
Install Windows/WinPE onto a USB drive and boot from it.
Recover files from formatted hard drive, formatted card, formatted USB drives.
Defrag your hard disks and optimize the PC.