WAMP installed fine, no problems, BUT...
When going to phpMyAdmin, I get the error from phpMyAdmin as follows:
Cannot load mysqli extension. Please c
I had path variable in windows set to some random version of php.
The fix was to update it and set it to the folder within my wampserver installation:
C:\wamp64\bin\php\php5.6.38
Then I realized this is wrong also for my specific case, and I should actually be running the script from within vagrant. Live and learn.