Re: PDF Files being locked on Win 8..
A work colleague of mine has just come across the same thing on Win7 boxes. It appears to be a known bug when printing from Adobe. TMP files are created in our users’ roaming profile folders which are locked until the PC restarts. But at user logoff, since the system has the files locked, the Policy-driven cached profile deletion from the client fails. And that causes issues down the line, not least of which is hard drive space taken over by remnants of profiles which shouldn’t be accumulating.
We only came across this late last week, we’re looking into how to resolve the orphaned profile files thru scripted deletion because there’s no immediate solution for the locked files.