Create a bootable USB Installer for Windows 7

When you’re left out with no optical drive, or you’re on a netbook and are looking to do a fresh installation of Windows Vista, Windows 7 or Windows Server 2008, a USB Installer might come handy.

This quick article will help you create a self-bootable USB drive installer for Windows 7, Windows Vista, Windows Server 2008.

Things you’ll need are:

1. Koala
2. Windows Disc / Mountable ISO
3. A USB Flash Drive (4GB or above – formatted)

We’ll be using a tiny app called Koala (download) of a mere 250KB of download. The interface is pretty easy & straight-forward.


Insert your Windows DVD and a USB Flash drive for which you want bootable disk created on. Make sure your USB flash drive has a capacity of 4GB or more. Your USB drive will be formatted automatically.

Click ‘Scan’ against Source and it should read your optical drive and list you with the OS information. Next, click ‘Scan’ against destination and it should list you with available USB drives.

koala_drivesWhen you’re all set to create a USB disk, click ‘Start’. The process takes about 5-10 minutes and you have a USB Installer in hand!

Your flash drive is formatted to NTFS (File System) during the process.

Koala is developed by