I'm trying to fix a periodic 9f DRIVER_STATE_FAILURE error on an 8.1 system. Originally was reporting as due to iaStora.sys which I thought was fixed with a download thereof from Intel. Subsequently, however, get periodic failures with the generic ntoskrnl.exe as the cause. Sfc runs with errors. I've been trying to run dism /online /cleanup-image /restorehealth in various iterations without success. Most recently I'm trying to connect via a network to another 8.1 computer but, according to the dism log, it is reporting "Failed validating command line" while using the line dism /online /cleanup-image /restorehealth /source:\\<network computer name>\Windows. I've shared the network computer Windows folder and also have validated accessibility thereof at the command prompt with a net use command. The folder is visible in Explorer also. I had tried use of an 8.1 DVD earlier as the source to no avail also. Am I doing something wrong here other than not giving up?