iTunes for windows will not sync with phone if Path > 2048
I ran across this issue about a year ago: If the "Path" environment variable on a Windows PC contains more than 2048 characters, then Sync hangs before completing.
When this occurred to me earlier, I found the cause in the community forum., I cleared out unnecessary text from that variable, which fixed the immediate problem. I also assumed that the problem would be fixed in a future release, since it would seem to be such a trivial issue for a programmer.
Unfortunately, installing other software caused my Path to expand again, and it left me with fewer options for elimination. I managed to get things working again, but I'm afraid that it's only a matter of time until I have nothing left to delete.
PLEASE get this problem reported and fixed in a future release.
iPhone 6, iOS 8.4