Run XP Mode on Windows 7 Machines Without Hardware Virtualization
Feb 18th
One of the neatest new features in Windows 7 Professional and above is XP Mode, but not all machines are capable of running it. Today we show you how to use VMware to run XP Mode on machines without Hardware Virtualization.
Read the complete tutorial of how to run XP mode on Windows 7 machines without Hardware Virtualization on How-to Geek
Windows 7 themes for Windows XP and Vista
Feb 17th
Not everyone is excited about Windows 7 – there are plenty of XP users that are more than happy to stick with their trusty old OS. Just because you don’t want to change the system doesn’t mean you can’t get Windows 7′s update visuals on your desktop.
As is often the case, themers have been more than happy to create transformation packs that allow Windows XP users to skin their desktop to look like Windows 7. Brad wrote about one from DeviantArt users last year – when it was assumed that Windows 7 would look pretty much the same as Vista.
Now, however, we’ve got some options that more accurately reproduce the superbar and other features that distinguish Windows 7 from its big brother.
SevenVG Refresh
Vishal Gupta has done an excellent job with this theme. It’s simple to install, looks great, and features both normal taskbar buttons and iconized mode.
Windows 7 Complete
What would a theme post be without at least one reference to DeivantArt? User DopeySneezy calls this one Complete, and he’s not kidding. Includes Windows 7 style system properties, display settings screens, and more.
Seven Remix 2.0
Niwrad Soft recently updated his theme, and it’s even more convincing than V1.0. Some users have reported .dll error messages, though I didn’t receive any during my tests.
For a less complete tweak, you can convert your taskbar to the superbar using the tool created by another DevArt user, flawless02.
Windows Vista
Windows 7 Essentials Pack
Another winner from DevArt, this one by Ka-Booka includes just about every UI tweak you could possibly want to make Vista look like Windows 7 – even a Windows Media Player 11 mod, though some of you may choose to skip that one based on previous feedback about the new look.
Best Windows 7 Theme Win7-Blend
Feb 17th
Download – Best Windows 7 Theme yet; Win7-Blend by zainadeel
Author: zainadeel
Notes: Updates in 1.8
Full-size the Preview!!!
This is FINAL.. no more changes 
and if any x86 user is experiencing weird bug in superbar buttons then install the theme in the x64 folder
Instructions:
1. Download Universal Theme Patcher. Run in it Administrative mode (right-click > “Run as administrator”),
UAC must be turned off.
After patch, restart the computer to take effect.
2. Extract contents (Win7-Blend.theme & Win7-Blend folder) into C:\Windows\Resources\Themes
and double-click on Win7-Blend.theme
Then restart to make sure everything works properly.