I am having a similar problem to the one described in here, but none of the posted solutions have worked for me. The problem is the same as what is decribed above. When importing photos and videos from my iPhone 5S which is running iOS 8.4.1 to my laptop which was using Windows 8, Windows 8.1 and now Windows 10, I get an error message saying that there was an error when importing a video file. It only happens on video files. It can occur with Windows Photo Manager or Adobe Photoshop. When this occurs, the program importing the files acts as if the iPhone was unplugged from the computer.
I have tried the following:
- Switching between USB 2.0 and USB 3.0 ports. (no change)
- Turning iCloud Photo Sharing and Photo Stream on and off in all possible combinations (no change)
- Booting the computer up with the iPhone plugged in (no change and I don't even know why I thought that would work).
- Using a computer with Windows 7 (Works!!)
Something interesting that I noticed: When I upload the pictures from my phone to my PC, it will "disconnect" at some videos, and I do believe that the length of the video plays a role in that as mentioned above. However, the PC acts as if it lost the file during the upload. So when I look in my Photos/Videos folder, the video is present, but the time stamp has changed. The time that the video was shot has decreased by about a day. I don't know if that helps anyone, but any advice would be greatly appreciated. As others have stated, it's very frustrating to keep unplugging and plugging back in your phone for every video!