We store a master group of fonts in the folder: U:\User Data\All Users\Fonts
This has all the fonts that we've come across over the years.
In order to update the fonts of a PC:
1) Open control panel
2) Select the Fonts icon
3) Go to the master fonts folder, select all fonts, copy, and paste into the Fonts window opened in the previous step.
NOTE: Some fonts will not copy...so monitor the copy so that you can answer the prompts (otherwise it will stop and not finish until you do).