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How to use Virtual PC with Windows 7
Create virtual machines, run Windows XP applications
By Kevin Fogarty | CIO US
Published: 16:01 GMT, 05 November 09
Windows 7 is already a big hit for Microsoft, according to market share tracker Net Applications, which shows it rising past all the extant versions of Linux and Windows except Vista and XP and into fourth place hot on the heels of the Mac OS X 10.5.
One of its most talked about features is a version of XP built right in to some editions, so it can run in native mode on a virtual machine all those applications that never made the leap compatibility with Windows Vista.
Except XP Mode doesn't come automatically, you have to install it. And it doesn't come with all editions of Windows 7.
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Users running Professional, Ultimate or Enterprise have to download both XP Mode and Virtual PC, on which it runs. Those with Home Premium or Starter are stuck. Virtual PC not only doesn't come with those editions, Microsoft theoretically doesn't allow Virtual PC to even run on anything but Vista, XP or the three more exalted editions of Windows 7.
That's not to say Virtual PC doesn't run there, anyway, however. And, fortunately, the installation procedure is the same for Virtual PC whether you're licenced for XP Mode or not.
I loaded and ran it on a laptop running 64-bit Windows 7 Home Premium on an Intel Core 2 Duo with 4GB of memory. Here's how to get going:
Step 1: Check your Processor
Intel and AMD have both built hooks into their processors that allow the host and guest operating system (the virtual machine) to trade off tasks more smoothly. Virtual PC will work on chips that don't have those hooks, but not well. Microsoft provides a free utility to check your processor. Intel and AMD have their own utilities as well, if you want to double check.
Intel Processor Identification Utility
AMD Virtualisation and Hyper-V compatibility Check
Once you know if the silicon supports it, check to see if your BIOS is set up to use those hooks. Chances are, for most desktops and laptops, it's not. Microsoft offers instructions and links to specific manufacturers here.
Step 2: Download Virtual PC
Microsoft requirements call for a 400 MHz or above Pentium-compatible processor, 35 MB of disk space and Windows XP or Vista. There are 32-bit and 64-bit versions. Virtual PC cares about the difference. The newest version of Virtual PC supports USB peripherals and are supposed to be able to support 64-bit operating systems within the VM as well. Either way, get the right edition for your machine.
Step 3: Build your VM
Once you've downloaded the installation package, launch it and follow instructions. Then click the Start menu and find Virtual PC. It will launch a Wizard that offers the choice of opening an existing virtual PC, creating one with default settings or will walk you through the process of configuring one yourself. Pick the latter to do things like increasing the RAM available to the VM from the default of 128 MB to a gigabyte, or raise the default virtual hard disk size from 16 GB to something with enough room for an OS and any applications you want to run only within the VM. The whole process takes less time than it does to install most bits of freeware. But that's only the configuration, not the VM itself.
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