No problem reading and writing to my Boot Camp Partition from networked PC when it's active (when Boot Camp Windows 8.1 is running). When Windows on Boot Camp is shut down, I can access and read all files and folders on Boot Camp partition, but cannot write. For instance, if I try to paste a file, I get a Windows notice that the drive is read only. Wondering if there's a way around this? For instance, on my dual boot (Windows 8.1 and Windows 7) PC I can read and write to the inactive OS from the active one. This is not a permissions problem,since I can read and write from network PC just fine- as long as Boot Camp Windows 8.1 is running.