I got a virus on my laptop, ever since then I’ve been getting messages like the below when I start word:
“The add-in template is not valid”
This was happening 3 times every time I was going into word – super frustrating. I was going into word, I could not delete the add-ins. I was searching the registry – nothing.
Then I found (after searching the C:\) this folder location. Word tries to load all of the templates in this dir (great place for a virus to start?) when word starts. I deleted the dodgy files from this dir, and now work starts fine! woot.