I have based this article on information from Intel (a leading SSD producer) and Microsoft combined with my own testing. Some of it will even degrade your (Windows) performance. Not only that, but there is a lot of nonsense information too. When you search on the Internet you'll find a lot of conflicting advice on how you should optimize Windows 7 to run on your SSD drive. A minimum Windows 7 installation (complete C drive) takes around 15GB, my current installation uses just over 50GB. I think you'll need a 64GB drive as minimum, but some might be able to 'get away' with a 32GB drive. For that reason I would personally try to keep around 20-25% of the drive as free space. SSD drives employ "wear leveling" techniques, but they need free space to be able to do so. Talking about space, free space on an SSD drive is the best way to guarantee endurance. Since space cost is at a premium in SSD's, these tips could come in handy. Then why this article? There are a few other things that will improve your SSD's performance and/or endurance that you can apply, and I'll show you some tips to reduce the amount of space needed for your Windows 7 installation. If you decide to transfer a 'working' Windows 7 installation from your current hard drive to an SSD drive there are one or two other things to watch for.
If you do a new installation of Windows 7, the only thing you should check first is to make sure your system's BIOS is set to run SATA in AHCI mode (if it is user-selectable). If you read through this article, you may get the impression that it's a lot of 'work' to get Windows 7 to work with an SSD drive nothing is further from the truth. I'm of the opinion that it doesn't make sense to add an SSD drive to a machine running Windows XP or Vista, just as it doesn't make sense to put a V12 engine in a 10 year old Trabant. This article will only deal with Windows 7.
People who value top system performance often find the price difference well worthwhile. SSD drives are available at $1.90 to $3.10 (and more) per GB. A traditional (SATA 3.0Gb/s) hard disk can these days be bought for prices around $0.08 to $0.15 per GB for 'value' drives, while high performance drives will cost around $0.50 to $1.20 per GB. There are some disadvantages too, with the higher price being the largest disadvantage. *) I measured the temperature expelled from my computer case and it declined from 40☌ (104☏) when using two 15,000 RPM SAS hard drives to 29☌ (84☏) when using a single SSD drive.
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