FIXED: iCloud Photo Stream stops syncing on Windows

I’ve had this happen a few times now, not sure what causes it, but iCloud Photo Stream occasionally stops syncing on Windows 7 for me.

The way I have fixed it is to reset iCloud  by:

1. stopping the Photo Stream process ApplePhotoStreams.exe using Windows Task Manager
2. renaming the %APPDATA%Apple ComputerMediaStream directory (i.e. C:UsersusernameAppDataRoamingApple ComputerMediaStream)
3. log out and back in again
4. restart iCloud (Start, type iCloud, press Enter) and re-enable Photo Stream.

Judging by this thread on the Apple Forums uninstalling and re-installing iCloud also seems to do the trick, but of you’re reasonably computer savvy, my method may be a little bit quicker.

With any luck, the next version of iCloud will fix this issue.