I was on the phone well over an hour with Apple today and I also have issues after raising a new HP starting with an upgrade from Win8.1 to Win10. When I plug in my IPhone 5s, it goes crazy, buzzing wildly and finally throwing an error 0xE800084, also 0xE8000004, and another was 0xE8000056. It is an unknown error. We did very carefully scripted uninstall and re-install of ITunes for this Win10 on my 64bit HP mini desktop, but the problem persists. This is not fun, but I cannot tell if it is Apple or Microsoft issue. UPDATE !!
I found these simple steps in a blog somewhere and tried. The recommendation was to set a read-only attribute to allow read-write (in effect).
IT WORKED!!
Oh my gosh, that was too easy!
I think each person's problem could be unique, but this is one simple, and virtually harmless item to check.
- Open Windows Explorer
- Head to the Music folder
- Right click on your iTunes folder
- Go to Properties
- Uncheck the Read Only option under Atrributes