Are you trying to patch the disk or are you trying to patch the program that is downloaded in your system gaming files? I think when it makes contact with Steam all bets are off on doing anything.
That game can't run with out Steam right even off line you have to download something from Steam to run off line? Anyway that is what I believe. I have no idea if the 176MB for the patch including DX 11.
Should be bigger or not. But if you are getting thoes error messages I wouldn't be trying because it could cause problems with the game. Have you gone to Steams forum's or is it still off line?
Well I don't know much about that patch so I am at a loss on this part of your problem. How improtant is it to you to do this while playing with the disk? Have you tried other programs like Trixx, Speedfan?
How about Fraps? I will link you to a couple of them so you can give them a try and maybe you might get lucky. Good luck.https://www.sapphireselectclub.com/ssc/TriXX/TriXX.aspxhttp://www.almico.com/speedfan.phphttp://www.fraps.com/download.php