Yes, I have a similar issue with the GPU and MEI (Management Engine Interface I assume). Was on the phone with Apple Support earlier today: late 2015 does not officially support Windows 10 so we have to wait to get full support.
btw, I've got Microsoft's USB 3.0 driver. Am I supposed to have it from Apple?
I had a similar problem during my first bootcamp install, I didn't have wifi! It was completely missing, I went into the drivers and it didn't even register that I had a wifi card on the machine. Spent a good 3-4 hours on my laptop on youtube trying to figure it out and finally just deleted that partition and redid the bootcamp. Went flawlessly and has been working great ever since. Assuming you have fast internet it's worth a shot of just redoing it.
No idea bruh. I have a pretty slow internet connection so maybe a file timed out when downloading. Maybe apple just wanted to stick it to microsoft users and set it up so that 1 out of 100 downloads won't work right. I'm thinking it's that one.I also ordered my new iMAC and plan to use boot camp for Win 10.
I am kind of worry about such Win 10 driver issue in bootcamp because I already read it from several users. So far, all best solution is re-do the boot camp again, and indeed it solves the issue in most cases. I am very curious why "re-do" bootcamp will make differenct? same hardware, same software, same bootcamp procedure, why different results and why can't it be perfect installed in the first time?