I'm currently working for a company's IT department, and one of my tasks is to write documentation for common procedures that we perform, in order to get new employees acquainted with them more quickly. I was considering using the Microsoft Manual of Style as a style guide for consistency, since I find that most Microsoft support articles are easy to read and informative, but still brief.
From the reviews I've read, it seems that the book's primary audience is people designing Windows software and writing documentation for it. The files I'm writing deal with processes such as creating new users and setting up new computers. I'm not even sure if this could be considered technical writing in the first place. I'm mostly looking for information about very specific formatting, such as image placement, font usage, and line spacing, but I also would like to read about more general topics such as word choices and overall layout.
Is this book a good choice for me? If not, are there any that would be better-suited to what I'm doing?