Mbmcavoy asked on TeX.SX:

 
How can I manually install a package on MiKTeX (Windows)?
 

I’m using MiKTeX on Windows. My employer’s locked-down network blocks the application’s automatic installation function. I can take my laptop home and successfully install from there, but if I need a package in the middle of the day I’m stuck.

I am able to access the CTAN website and download the package files (.dtx or .ins?), but I don’t know what do do with them. How can I do a manual package installation?

The answer on TeX.SX explains three ways:

• Installing a package available as dtx/ins bundle
• Installing sty or cls files
• Obtaining and installing packaged universal archives in tds format

and it

• Gives links to further information
• Shows a different and very effective way, using a local repository

Read more on the site.