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Regardless, you are going to have to wipe the internal drive on your MacBook Air and try different partitioning schemes, so you must have yet another a large external hard drive for making backups of the system you already have. Reference Three, a discussion of the benefits of vLite and how many GB you can save. To use it, you need a working Windows system to configure a special custom installer DVD that vLite helps you create. It is not exactly kosher and has its detractors. There is a utility for reducing the size of a Windows installation before you actually install it. Here are some links to discussions I found. You will want to refrain from installing any features of Windows that you decide you don't need, and you will want to make sure that you don't install any Windows applications that you don't absolutely need. I would also look into the differences between the size of the installation in Windows 7 32-bit versus 64-bit, and see if Windows 7 Ultimate takes up a great deal more space than Windows 7 Professional or Windows 7 Home Premium (I suspect it does).
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From what I can see, you could do with as little as 12GB if you are meticulous.įor instance, once Windows is installed, you can permanently disable hyberfil.sys and reduce or limit the size of pagefile.sys, and this will save you many GB. You should research on how to make the smallest Windows installation possible, so you can create the smallest BootCamp partition possible. Since you must boot Windows 7 from the internal SSD, and since you also want to run Mac OS X from the same volume, I recommend that you concentrate on cleaning out your existing Mac OS X system and freeing up as much disk space as possible.
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