The permanent solution is to override the behaviour of Windows and "Take Ownership" of the folder/files in question, allowing you (the user with ownership) full read/write access. Whilst MS have disabled this to make things more secure, most sensible users would be safe enough doing this. A quick google search will show you how to do this, since it's a pretty common Win10 issue.
We'll have much more fun when people start using Win 10s, since that won't even allow .exe's to run. Only apps purchased from the Windows store, long and short, that's useless if you want to play games or pretty much use your computer, best avoided.