I have Windows 7 Pro (64bits) + Adobe CC and I have same bug thing.
Often but not everytime, when I want to rename a file (eg a pdf) I have an error message about administrative rights, file already in use or read only file.
Of course the file isn't in use anymore, the user is admninistrator and there is no reason that this file could be set to read only state.
Sometimes disabling the preview pane is a solution, but sometimes it just doesn't work.
But I notice something which can't be only a coincidence.
The issue happens with the files within a folder of a file which have been recently used.
I gave an example :
I export a pdf file that I choose to name "file6.pdf" (from Indesign) in a folder named "EXPORT" which already contains 5 other pdf files.
EXPORT/file1.pdf
EXPORT/file2.pdf
EXPORT/file3.pdf
EXPORT/file4.pdf
EXPORT/file5.pdf
If I want to rename any of those files, I've got an issue.
But if I close indesing and or Acrobat reader, I can rename of delete all these files without problem.
It means that for a reason, indesign of Acrobat reader lock the edition of all the files within the folder of the last used file.
The IT gave me a .exe file which close every adobe and office process.
After the use of this file, everything works normaly.
This mess cause me lost of time and lost af patience.
How on earth is this possible to have such a bug, or unfinished work ?