Why can't programs save to some files they open? in Windows 7 Posted May 4, 2014 We were not talking about reg tweak. Check this;http://technet.microsoft.com/en-us/magazine/ff404240.aspx Doesn't work. Tried applying to the entire D: drive and to single folders. Still restricted to only being able to create new folders in most old folders and unable to save files into them - but can copy/move files into those folders after clicking the button to make it do it anyway.