8 preview Installing Windows from a USB stick

As he did before the release of Windows 7, Microsoft is making available public previews Windows 8, which allow you to test the system for free and thus familiar with the new environment. With all the changes and new concepts brought by Windows interface 8, everyone should want to take a look, if only for curiosity.

Most will prefer the second option "Windows Developer Preview Português, 64-bit (x64)" but netbook users or older machines with less than 2 GB of RAM should download the 32 bit version, which by the way is a smaller download of only 2.8 GB:

This ISO can be burned and installed the regular way. However, in mid 2011, many will prefer to install from a USB stick, which will result in a faster installation and quiet, and avoid spending unnecessary media.
The creation of the Windows installation stick 8 can be done using the Windows 7 USB / DVD Download Tool from Microsoft, the same tool used to create installation flash drives Windows 7. Since both systems use the same structure of the installation DVD, the tool also works for Windows 8 preview without having to upgrade.

You will also need a stick of at least 4 GB formatted in FAT32. If it is formatted in a filesystem, you can do a quick reformat simply clicking on the drive letter by selecting the "Format" and as using the FAT32 file system.

With the USB plugged in, just run the Download Tool, select the iso Windows 8 and use the option to copy the contents to the stick. He also takes care of creating the boot record, making the stick bootable:

Once installed, simply restart and boot over the stick to perform the installation. 8 The Windows installer is very similar to Windows 7 and the system requirements are also similar, with a minimum of 2 GB of RAM 20 GB HD to 64-bit and 1 GB of RAM and 16 GB HD 32-bit version. However, in most situations, Windows 8 consumes even less memory and less processing, since the system remains less active services by default.

This is a welcome consequence of the fact that Microsoft is optimizing the system for use in tablets, as well as for ARM processors, which do not have as much raw processing power of an x86 processor and tip.
Another tip is that you can also install the system directly from the iso in a previous installation of Windows, without using a flash drive or a DVD.

In this case, you will need to use Daemon Tools or other tool to mount iso files. Once mounted the image, to access content and run the \ sources \ setup.exe within the image, which allows different autorum a new installation or install it in dual-boot with the current installation, rather than simply update the system.