Windows Update fails with 8000FFFF (E_UNEXPECTED)

Quick Solution:  Check the permissions on  the root of C: and ensure that BUILTIN\Users have Read access. Long Story: 8000FFFF == E_UNEXPECTED, not very helpful… Had a client where windows update was continually failing with the error code 8000FFFF.  When looking in the Windows Update log we’d see errors like this: WARNING: PTError: 0x80248014 Handler…

53