Hello,  Try opening CMD as administrator and then run the drv_cfg utility.
Has anyone else had this problem?.  This is for the SDC  PS C:\Program Files\EMC\scaleio\sdc\bin> ./drv_cfg --query_mdms Failed to open \\?\root#scsiadapter#0000#{cc9ba7b0-6d22-4016-81c5-3369f0a163c4}. Code 0x5 Failed to open kernel device  Is there the equivalent of the scini daemon on windows that I can try to restart?  Where are the logs?  Thanks for the help.
Windows 2012 drf_cfg --query_mdms gives - Failed to open kernel device