Okay so I found the solution for me. Long story short - I have 2 windows on my PC, one is x32, other is x64 (which had the error). I turned on the x32 and update went normally. Don't know wether it has something to do with the x32/x64 versions, my own PC or something else, bet yeah, I'm now up to date on the x64, so currently everything is working for me