I have no idea what your level of familiarity or competence is with computers, but if you are able to read and follow directions, there should be very little reason why you cannot Google you current situation and try some of the solutions described there.
I quickly looked on Google for the error message you listed “chrome_elf.dll is forbidden” and came up with a bunch of possible solutions, have a look and read at the following URL, or choose another one for yourself.
The problem is that I never used chrome on this computer + I'm installing PS client not a browser hehe... All the solutions I've encountered relates to a browser problem.
But thanks for the help anyway. I'll take a look at the link you added.