Opera 29 does not loads, information as asked by John Haller

What happens if you run opera.exe directly within the OperaPortable\App\Opera directory? (Note that this will cause a profile to be created in that directory that will not be used later)

Something is up with your PC specifically and I'm unsure if I'll be able to diagnose it with the language barrier. Opera Portable 29.0.1795.60 Rev 2 from our site works without issue on Windows XP, Vista, 7, 8, 8.1, and 10 Technical Preview (current build as of today) in both 32-bit and 64-bit versions (of the ones I tested). I just purposely tested in clean virtual machines for all of those and it works everywhere. The fact that it doesn't run on your machine means something else is going on on your machine that is interfering and I'm unsure what that is.

The only reason that other site's Opera is working is they're using the unreliable command line parameter to redirect the profile. We discovered around Opera 23 that this doesn't work well and can often cause things to be left behind (aka not run portably). Not to mention the fact that it kills Opera's ability to upgrade from a 12.x profile (a bug introduced around Opera 21-ish). Opera has a tendency to reintroduce bugs like this every few versions these days. It's a very different browser than it used to be.

Your best bet is to use the official Opera installer and install in portable mode. That will give you a real legitimate Opera without any nasties that'll work portably. The only reason to use the PAF version is it's just a bit more portable and it works automatically with our platform for installs and updates. The base Opera installer's generated portable version is just about as portable, though things like passwords and such won't work in either one portably without using Opera sync.