Doug
wdf01000.sys.uninstal.mof in /winsxs/x86......, mod 10/06/2009
wdf01000.sys.uninstal.mof in /System32/wbem, mod 10/06/2009
If these two files have uninstall with a single L they are also suspect.
wdf01000.sys in /winsxs/x86......, modified 18/04/2012
Does this modified date coincide with when you started to see problems?
I am coming to to the conclusion that you have a malware infestation. The simplest solution is going to be to reinstall Windows. Removing the malware may (probably will(?)) leave you with a system that still does not work properly!
What anti-virus software is installed?
You could send a sample of wdf01000.sys to to your anti-virus provider for analysis.
FWIW I also could find wdf01000.sys on my DVD but it could be buried in a file / folder that Search would not find,