I’ve been getting a few enquiries recently from people saying that, after Word had been updated, their macros had disappeared and/or the keystrokes assigned to them.
So back them up!
(As I wrote that, I backed up my macros and keystrokes – it took me all of 7 seconds!)
Then if something goes wrong, you can restore them from your most recent backup – that would take me all of 20 seconds.
Invest time now to save time later: set up this high-speed backup, as per the instructions in this pdf. (Separate instructions for Mac and PC provided, thanks to Jennifer Yankopolus.)