Permission denied when in windows trying to save files to the MacHD

Question

I just made the huge leap from a Dell Laptop to the Mac Book Pro and I can't be more thrilled about it! With change, obviously comes with some challenges, not the least of which is my lack of knowledge on the new platform.
Because I had some programs I wanted to keep that were more robust in the Windows environment than Mac OS, I set up a dual boot. It works great.
For the first few days I was able to write while in Mac to the Windows Drive and while in Windows to the Mac drive.
Now, for some reason, and I'm not sure what change I made or installation caused it, but I'm now getting "denied access you don't have permission to write to this drive" when I'm in windows trying to save doc's to the Mac. I keep everything in one place.
I used disc utility and verify and repair permissions, there was a bunch of code on the screen it says it fixed it except one area in the library it said it couldn't modify. This is all greek to me at this point.
Im at the point of reinstalling the OSX system with the archive and install, to see if a 'reset' in that fashion would work.
Any help for a Mac Newbie would be appreciated. The learning curve is fun.

Answer 1

As you have found out, Paragon HFS+ and MacDrive allow you to write from Windows to Mac, while booted in Windows, but you may also want to get Paragon's NTFS for Mac or NTFS Mounter (free) which also enable you to write to the Windows partition while booted in Mac. These install on the Mac side of course. I often use these to put files on the Windows desktop (or elsewhere) I know I may want next time I boot to Windows.
Paragon's NTFS for Mac is seamless compared to NTFS Mounter, but is more expensive, and also requires a slightly different process (via the Paragon pref pane) to boot from Mac to Windows.
BTW I have experience of both MacDrive 8 and Paragon HFS+. Both work but I had Paragons HFS+ installed when I tried to update to Windows 7 Service Pack 1 recently, and it kept failing. There was a thread about it here somewhere, where a number of other people had the same problem. The culprit was Paragon HFS+. Uninstalled Paragon HFS+ and the update went through. MacDrive 8 was OK, and I have stayed with it since then.
MacDrive 8 is good and has good support, but it has the most draconian activation policy I have ever encountered. You can deactivate in order to use the SN on another computer, but if you forget or the hard drive fails you will get a message about exceeding allowed number of activations. Support are very quick to reset it when this happens, but it is irksome.