Vista Install For Dummies How To Install Vista (RC2 or later) under Parallels (1940 or later) Note: These instructions appear to work for the newest version of Vista (5744) and Parallels (1940). Things you will need An Intel Mac with a minimum of 1Gig of RAM At least 10Gigs of free hard drive space (about 3 gigs for the Vista ISO, and about 6 for the basic Vista install) The Vista Installation ISO file A valid Vista Product Activation key Parallels build 1940 or later Download and Install Parallels download: http://www.parallels.com/en/download/desktop/ Install Restart your mac Get the Vista RC2 installation ISO. You will need a valid product activation key, which you can get by registering w/microsoft. If you have a Vista Beta 2 product key, this will work. NOTE: MS has pulled the RC2 download page, so these instructions which were for RC1 may or may not still work Configure a new VM in Parallels Create a new VM in Parallels. Choose the "Windows Vista" settings. Note: Re-using an old VM is not recommended, since it may not have the right settings. Let the wizard create a new one for you to be safe. Click the "CD/DVD-ROM 1" link. Click "Use Image File" on the "Emulation" section. Click the "..." button, and then drag the ISO to that window to select it. For better performance, I recommend that you make one additional change: Click "Options" at the top of the window, then click the "VM Flags" tab, then change "Choose virtual hard disk cache policy..." to "Mac OS X". This may slow down the install a little, but it makes your Mac much more useable in the mean time. Click OK, then the Play button, and Vista will boot. Install as per the onscreen instructions. install Parallels Tools & Drivers After Vista has installed and finished booting, From the Mac "VM" menu, choose "Install Parallels Tools". Do NOT click "Install/Run PrlTools". Instead, click "Open folder to view files" Right click "PrlTools", choose "Properties, and click the "Compatability" tab. Select "Run this program in compatability mode for Windows XP (Service Pack 2)" Click OK, then double-click PrlTools to run it. Choose all the default installation options, and click "Install this driver" to any messages asking for permission. Restart Vista when it asks. To verify that your installation went well Click the VM window -- your mouse should flow between the VM window and the rest of your mac. If the mouse gets "stuck" in the window, the Mouse driver didn't install. Right click the desktop, and choose "Personalize", then click "Display Settings". It should say "Generic non PnP Monitor on Parallels Video Driver". If it doesn't say "Parallels Video Driver" then the video driver didn't install. Try to browse the internet using Internet Explorer. If it works, then your network driver is fine. Notes Upon first boot, Vista does a bunch of hard drive indexing which can use 100% of the CPU and cause the machine to act sluggish. Let it run for a few hours and it should finish these tasks and then start performing better. The installation takes about 6Gigs -- this is an improvement over Vista Beta 2 which took about 9 gigs. I hope this is helpful! Please add any additional Instructions / Tips to this thread.