Pausing Windows on doesn't work

Hi

when I try to pause Windows (which is a Boot Camp installation running on Parallels Desktop), I'm getting a message something like: "Windows 7 uses an NTFS-formatted Boot Camp partition and cannot be paused. There is a software on your Mac that enables reading/writing on NTFS-Partitions. To pause Windows 7 you must remove this software."

In fact I once tried things like MacFUSE, NTFS-3G and NTFS for Mac but none of them really worked so kinda removed them (or at least tried so). Since that point I'm getting this message.
So my question is either how can I remove these drivers properly (which would not really be Parallels related) or how does Parallels check for NTFS software? I know this is a very specific question but the forum is my only option since Parallels doesn't seem to provide proper free support.