Can I run OS X from inside Windows?
Q I’ve been running Windows 7 on my 2012 iMac using Parallels Desktop for some time now and I have found it generally quite satisfactory. However, more and more I find that the most demanding applications that I want to run are in Windows, and my understanding is that Parallels necessarily involves some slowdown for the Windows component. Since I mostly use the Mac side of things for undemanding things like email and the web, can I switch my iMac over, so that it normally starts in Windows and uses Parallels for the Mac apps? Is this even possible? Martin Jenner A At this point, we might reasonably wonder whether you actually want to run OS X at all, but let’s not peer under that particular rock just now. You are right that virtualised operating systems using software such as Parallels Desktop or VMware Fusion always involve a performance penalty. But rather than swapping from one virtualised OS to the other, why not boot both of them natively? Boot Camp is built into OS X and allows you to install each OS in its own partition on your hard drive. To switch between them you simply hold down å while you restart and pick the volume for the operating system you want to use. From that point, the system starts normally as if it’s the only one installed on the iMac. Using Boot Camp will give you much better performance, but the disadvantage is that you can’t run Windows and OS X apps at the same time on the desktop.