Defragging in Windows 7 (and later)

Disk defragging, or more correctly “defragmenting,” is the source of many questions, more than a few misconceptions, and many articles here on Ask Leo!

The good news is that for reasons we’ll explore, defragging in Windows 7 is actually something you rarely need think about any more.

While we’re exploring, we’ll also look at a brief refresher on what fragmentation is, why defragmenting is needed, and how to do it yourself, if you want to. I’ll also address some of the most common myths of defragmenting.

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How Much of the Swap File Actually Gets Used?

Leo, I’ve been wondering how much of the swap file gets used when you have 16 or 32 GB of memory. I have been in the habit of placing the swap file and Lightroom’s cache on an SSD to improve speed. But I’ve been wondering whether the swap file should go on another hard disk drive, especially if it doesn’t get used much.

Unfortunately, there is no general answer to say how much of the swap file is going to be used. It depends entirely on the software that you’re running, what your system’s own memory requirements are, and how much software you’re running.

For example, if I’m just running a web browser and a couple of other things on a machine with lots of RAM, my system may not be using the swap file at all. On the other hand, if I’ve got Photoshop, a video editor, and a virtual machine or two running, then the memory requests of the system may be high enough that it’s going to start using the swap file.

So, I can’t answer your question, specifically, but I can review some of the things that factor in.

Read moreHow Much of the Swap File Actually Gets Used?