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Dont mind if you are familiar with the process. But, aren’t you aware of this? Haven’t you installed an OS in such an easy manner? Then this article is worthy to look out..
Download Windows 8 and the Windows 7 USB/DVD tool
If you want your system to have a relatively, modern touch, its good to suggest you Windows 8 x64 i.e. 64-bit OS.It just requires an extra 1 GB RAM and 4GB negligible storage space for users.Windows 7 tool also works equally well with windows 8.
Create a bootable Windows 8 USB drive
In order to create a bootable USB drive that is of 4GB or more storage capacity. Once you install the windows 7 USB/DVD tool into the system, the utility opens up.
Now browse and select the Windows 8 ISO downloaded previously along with the USB drive just inserted. The Drive will be completly erased so better make a backup of your data in your USB. The complete procedure shall take not more than 5 min depending the capacity of your drive. A message pops up that reads "backup completed" after completion of the task. So, all you have done is nothing but a sort of BACK UP process.
Install the Windows 8 Release Preview (key: TK8TP-9JN6P-7X7WW-RFFTV-B7QPF)
Obviously, BACK UP of anything is important before proceeding.
If you plan to upgrade or overwrite your installation of Windows XP, Vista or 7, just open the root directory of your USB drive in Windows Explorer and launch Setup.exe to begin.
You'll get to choose between the two options of file-storage.
Windows 7 users ought to have a painless upgrade as programs, Windows settings, user accounts and files are imported. However, Windows 8 doesn’t save programs from Vista and XP(also doesnt keep windows settings from XP as the interface changes entirely ).
Until this, we have a “self-explanatory” approach – installing from the USB.
But,If you want to dual boot Windows 8 with your alredy existing operating system, you'll need to install a second second storage device or create a new partition in the existing hard disc. This ofcourse, requires a little more effort.
Windows 7 and Vista users can create a new partition with Windows' Disk Management application (Start > search for Disk Management).
Once the application loads, you should see your operating system's drive. Follow these steps:
1.Right click the drive that you want to house Windows 8 and choose "Shrink Volume" (Windows 8 64-bit requires at least 20GB, so shrink your current partition accordingly).
2.Right click the new "Unallocated" space and create a "New Simple Volume".
3.Choose the next available drive letter and quick format the partition with NTFS (you can name the volume anything, but we'd suggest something like Windows 8 RP x64).
Windows XP users will have to make partition adjustments with a third-party tool such as Partition Logic,
but here also, we'll do the same thing: shrink one volume to create another.
It should be a cake walk from here as Microsoft's installation process directs you through everything. Just boot off your Windows 8 USB drive, select a custom installation and select your freshly created partition. If you're having problem launching the USB drive, you probably just have to put it ahead of your system drive in the BIOS (look for boot options).
If you want to get rid of Windows 8, load your primary OS and initiate partition software (again, Disk Management for Vista or 7 users). Remove the Windows 8 volume and extend your remaining partition into the newly unallocated space. Removing Windows 8 could destroy your boot loader and prevent your original OS from starting properly. Don't freak out, this is a simple patch up. Windows Vista and 7 users can use the automatic Startup Repair, while Windows XP users will have to put relatively more efforts.