As we know Microsoft has released Windows 8 RTM to MSDN and TechNet subscribers and a free 90-day trial version of Windows 8 RTM which can be downloaded using following link:
Download 90-Day Trial Version of Windows 8 RTM Absolutely Free
If you are planning to install it but are not sure whether your system is capable to install it or not, don't worry! If you are using Windows Vista or Windows 7 in your system, your system will also support Windows 8 without any problem.

For those who want to know the system requirements, following are the official system requirements for Windows 8:
- Processor: 1 gigahertz (GHz) or faster with support for PAE, NX, and SSE2
- RAM: 1 gigabyte (GB) (32-bit) or 2 GB (64-bit)
- HDD: 16 GB available hard disk space (32-bit) or 20 GB (64-bit)
- Graphics Card: DirectX 9 graphics device with WDDM 1.0 or higher driver
- Taking advantage of touch input requires a screen that supports multi-touch
- To run Metro style Apps, you need a screen resolution of 1024x768 or greater
- To snap apps, you need a screen resolution of at least 1366x768
- To use secure boot feature the firmware should support UEFI v2.3.1 Errata B and should have the Microsoft Windows Certification Authority in the UEFI signature database
If you don't want to install Windows 8 in your system but want to test its new features, you can install it in a virtualization software. It'll not install Windows 8 in your system and will not affect your already installed OS. It'll install it virtually. Check out following article which contains instructions for installing Windows 8 in Virtual Box:
How to Install Windows 8 in Virtual Box or VMware Workstation?
Posted by: Vishal Gupta | Categories: Windows 8
Aaron
...EXACTLY the same as windows 7. Impressive.
(although the additional requirements differ)
Ashish
Can anybody tell me what are snap apps in windows 8.
VG
^^ There are no snap apps. The line "To snap apps, you need a screen resolution of at least 1366x768" means that if you want to enjoy app snapping feature which allows you to run 2 Start Screen apps or one Start Screen app and one Desktop app side-by-side, you'll need 1366x768 screen resolution.
ajay
hello vg.. iam a regular follower of your blog.
here is my doubt about installing windows8 release preview,when i tried to install it flashes a message saying'' your pc's cpu isn't compatible with windows8" but i am running on win8 consumer preview edition.
my processor is intel Pentium 4cpu 3.00GHz,mercury 945 motherboard,with 2gb of ram..
is their any thing i need to change in BIOS, to get rid of this message.
thanks in advance.
Ashish
Thanks vg for this info.
VG
^^ Welcome.
@ajay
Try to create a bootable setup disc or USB and then boot using it and install Windows 8 Release Preview.
Max
ajay, maybe you are trying to install 64-bit version of Windows 8, and only few Pentium 4 CPUs are x64-compatible.
sasja
hmm, looks like every win7 PC can handle win8.
will it fit on a 13 GB partition?
MITHI
@ajay you need to enable a setting in bios, which says some thing like execute bit
zh1985
@ajay, pls. refer to this link:
answers.microsoft.com/en-us/windows/forum/windows_8-windows_install/error-when-installing-windows-8-release-preview/a2c11f2c-d43b-44fc-9bc0-61805a2d95ef
@VG, it is ok if i post this link?.. I hope this will be permitted..
tonyboyy
Please can you make a compassion between Windows 7 and Windows 8 rtm about memory usage showing the task manager of windows 7 and windows 8 on 1 gb ram memory system, bye.
Kashif Minhaj
Hi VG, I've installed Windows 7 64bit on my pc before. Windows 8 32bit requirements are much lesser than Windows 7 64bit...Can I install and use Windows 8 on my PC???
My PC details:
Pentium 4 Processor 2.67GHz
512 MB RAM
80GB HD
VG
^^ If your PC supports Windows 7, it should also support Windows 8. :)
jai
hello i am having pentium d processor with mercury pmv7 pro v1.0 motherboard and 1 gb ram. i am not getting any graphic driver for windows 8. pls help me someone.